Ventilators

Hamilton Medical C6: troubleshooting and error codes

The ServiceForge knowledge base holds 74 documented symptoms for the Hamilton Medical C6, with 187 ranked causes, 62 diagnostic checks with test points and expected values, and 442 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Expiratory valve test fails

Expiratory valve pneumatic test does not pass with NOT OK status message

Ranked causes

1. Ambient valve malfunction (common)
2. Pvent_control requires calibration (common)
3. Expiratory valve requires calibration (common)
4. Expiratory valve membrane degraded (common)
5. Expiratory valve cover malfunction (occasional)
6. Internal pneumatic leak (common)
7. Expiratory valve malfunction (occasional)

7 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Flow sensor calibration fails

Flow sensor calibration cannot be completed

Ranked causes

1. Adult/pediatric flow sensor mismatch (common)
2. System leaks (common)
3. Faulty proximal flow sensor (occasional)
4. Ambient valve malfunction (occasional)
5. Expiratory membrane damaged (occasional)
6. Pressure sensor component failure (occasional)

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Air entry pressure exceeds limit with HEPA filter

Air entry pressure is greater than 2 mbar with HEPA filter installed

Ranked causes

1. HEPA filter clogged (common)
2. Pfilter sensor connection fault (common)
3. Pambient sensor reading incorrect (occasional)
4. Mainboard failure (occasional)
5. Blower malfunction (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Blower flow test fails

Blower airflow test does not pass with NOT OK status message

Ranked causes

1. Internal pneumatic leak (common)
2. HEPA filter clogged (common)
3. Qvent sensor malfunction (occasional)
4. Blower module malfunction (occasional)
5. Ventilator mainboard failure (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Blower pressure test fails

Blower pressure pneumatic test does not pass with NOT OK status message

Ranked causes

1. Internal pneumatic leak (common)
2. Ambient valve malfunction (common)
3. Expiratory valve membrane degraded (common)
4. Blower module malfunction (occasional)
5. Ventilator mainboard failure (rare)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Inspiratory valve test fails

Inspiratory valve pneumatic test does not pass with NOT OK status message

Ranked causes

1. Internal pneumatic leak (common)
2. Qvent sensor malfunction (common)
3. Ambient valve malfunction (common)
4. Inspiratory valve requires calibration (common)
5. Inspiratory valve cable disconnected (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pressure calibration fails or reaches incorrect value

Cannot reach 50 mbar (± 5 mbar) or Gain values exceed 1000 ± 50

Ranked causes

1. Blower flow issue (common)
2. Expiratory valve membrane damage (common)
3. System leaks (occasional)
4. Measurement device not zeroed or incorrect unit (occasional)
5. Pressure sensor malfunction (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pressure calibration target not reached

50 mbar (±5 mbar) cannot be achieved when Gain values exceed 1000±50

Ranked causes

1. Blower flow insufficient (common)
2. Expiratory valve membrane degraded (common)
3. System pneumatic leak (common)
4. Pressure gauge not zeroed or incorrect units (occasional)
5. Pressure sensor assembly malfunction (occasional)

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Exp. valve calibration fails or takes excessive time

Calibration takes >3 minutes or fails; pressure levels cannot be reached

Ranked causes

1. Expiratory membrane damaged or dirty (common)
2. Expiratory valve cable disconnected (common)
3. Faulty expiratory valve (occasional)
4. Expiratory valve cover failure (rare)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Expiratory valve calibration takes >3 minutes or fails

Expiratory valve calibration procedure exceeds 3 minute duration or does not complete successfully

Ranked causes

1. Expiratory valve membrane defective (common)
2. Expiratory valve cable connection fault (common)
3. Expiratory valve malfunction (common)
4. Expiratory valve cover defective (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Flow system values out of tolerance

Flow measurement values are outside acceptable tolerance during system test

Ranked causes

1. Flow sensor requires calibration (common)
2. Flow sensor malfunction (common)
3. Blower malfunction (common)
4. Qvent sensor malfunction (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Nebulizer valve test fails

Nebulizer valve pneumatic test does not pass with NOT OK status message

Ranked causes

1. High pressure oxygen supply disconnected (common)
2. Flow sensor requires calibration (common)
3. Qaw measurement abnormal (occasional)
4. O2 mixer assembly malfunction (occasional)

4 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Alarm lamp remains dark or displays incorrect color patient safety

Alarm lamp does not illuminate or displays wrong color (red, green, blue) during test

Ranked causes

1. Alarm lamp board connection fault (common)
2. Alarm lamp board defective (common)
3. Interaction panel board malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Alarm monitor tests fail patient safety

One or more alarm monitoring tests do not pass

Ranked causes

1. Outdated software version (common)
2. Ventilator mainboard failure (common)
3. Persistent hardware issue (rare)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Alarm system loudspeaker does not sound patient safety

Loudspeaker does not produce alarm sounds or audible alerts

Ranked causes

1. Loudspeaker incorrectly connected (common)
2. Loudspeaker defective (common)
3. Interaction panel board malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Audio Pause key illumination does not toggle

Audio Pause key illumination does not turn on or off

Ranked causes

1. Alarm lamp board connection fault (common)
2. Alarm lamp board failure (common)
3. Interaction panel board malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Backup alarm lamp not blinking patient safety

Backup alarm lamp does not blink or flash during alarm state

Ranked causes

1. Alarm lamp board connection fault (common)
2. Alarm lamp board failure (common)
3. Interaction panel board malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery state of health below threshold

Battery SoH is less than 20% or cell voltages are asymmetrical (>100 mV difference), or battery error is ≥5%

Ranked causes

1. Battery state of health (SoH) < 20% (common)
2. Cell voltages asymmetrical (>100 mV difference) (occasional)
3. Battery error ≥ 5% (occasional)

First check

Check state of health (SoH) of the battery

Test point: Battery management system
Expected: SoH < 20% requires replacement; SoH 20-40% optional replacement

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery state of health degraded patient safety

Battery SoH monitoring and replacement criteria during maintenance

Ranked causes

1. State of health (SoH) less than 20% (unknown)
2. Cell voltages asymmetrical (difference > 100 mV) (unknown)
3. Battery calibration error ≥ 5% (unknown)

First check

Check state of health (SoH) of the battery

Test point: Battery monitoring system
Expected: ≥ 20% for retention, ≥ 40% for optional replacement consideration

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Binary valve test fails

Binary or autozero valve pneumatic test does not pass

Ranked causes

1. Autozero valves incorrectly connected (common)
2. FFC cable improperly connected (common)
3. Pressure sensor assembly failure (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Expiratory valve cannot reach certain pressure levels

Several or certain pressure levels are not attainable during expiratory valve calibration

Ranked causes

1. Expiratory valve membrane defective (common)
2. Expiratory valve cable disconnected (common)
3. Expiratory valve hardware failure (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

HAMILTON-C6 logo illumination does not toggle

HAMILTON-C6 logo illumination does not turn on or off

Ranked causes

1. Key panel connection fault (common)
2. Key panel defective (common)
3. Interaction panel board malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

HAMILTON-H900 humidifier not communicating with C6 ventilator

HAMILTON-H900 symbol does not appear on bottom left of display after power-on and cable connection

Ranked causes

1. AC power cable not connected to dedicated socket on ventilator rear (common)
2. Communication cable not connected to COM 3 port (common)
3. Ventilator not in Application mode (occasional)

First check

Verify AC power cable is plugged into dedicated socket on ventilator rear

Test point: Dedicated power socket on ventilator rear
Expected: Cable securely connected

3 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Insp. valve calibration cannot be performed

Calibration fails to execute or Qvent does not reach target value

Ranked causes

1. Insp. valve not properly connected (common)
2. Faulty insp. valve (occasional)
3. Qvent sensor failure (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Inspiratory valve calibration cannot be performed

Calibration procedure fails to execute on the inspiratory valve circuit

Ranked causes

1. Inspiratory valve improperly connected (common)
2. Inspiratory valve malfunction (common)
3. Qvent sensor failure (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

IntelliCuff communication not established

IntelliCuff symbol missing from ventilator display or communication error message shown after USB connection

Ranked causes

1. USB cable not connected correctly (common)
2. IntelliCuff Control software option not installed (occasional)
3. Ventilator not in Application mode (occasional)

First check

Verify ventilator is in Application mode

Test point: Ventilator display
Expected: Application mode active

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

IntelliCuff pressure loss during checks patient safety

Pressure reading drops below expected 60 mbar when measured with hand pump at IntelliCuff port or after cuff connection

Ranked causes

1. Incorrect tube connection at IntelliCuff port (common)
2. IntelliCuff pressure tube worn or damaged (occasional)
3. Check valve malfunction on rear ventilator unit (occasional)

First check

Apply pressure with hand pump to IntelliCuff port

Test point: IntelliCuff port on front of ventilator unit
Expected: 60 mbar
Tools: Hand pump PN 500330, tube 4 mm internal diameter

3 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Loudspeaker sounds distorted or too quiet patient safety

Alarm sounds are distorted, muffled, or insufficient volume

Ranked causes

1. Loudspeaker improperly connected (common)
2. Loudspeaker defective (common)
3. Interaction panel board failure (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

O2 input test fails

Oxygen input pneumatic test does not pass with NOT OK status message

Ranked causes

1. High pressure oxygen supply disconnected (common)
2. O2 proportional valve cable connection fault (common)
3. O2 mixer assembly malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

O2 sensor value out of range

Displayed oxygen sensor value is outside acceptable range

Ranked causes

1. O2 sensor requires recalibration (common)
2. O2 sensor malfunction (common)
3. O2 mixer assembly connection fault (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pressure system values out of tolerance

Pressure measurement values are outside acceptable tolerance during system test

Ranked causes

1. System pneumatic leak (common)
2. Expiratory valve malfunction (common)
3. Pressure sensor malfunction (common)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Qvent does not reach target value

Flow measurement does not achieve expected calibration target during expiration monitoring

Ranked causes

1. Inspiratory valve connection fault (common)
2. Inspiratory valve defective (common)
3. Qvent sensor malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Rear and/or bottom fan test fails

Rear or bottom ventilation fan does not pass diagnostic test

Ranked causes

1. Fan connection fault (common)
2. Fan malfunction (common)
3. Ventilator mainboard failure (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

RS-232 communication interface not responding

Patient monitoring system cannot communicate with ventilator via RS-232 interface; no data signal detected

Ranked causes

1. RS-232 interface not activated (common)
2. Communication port configured to wrong protocol (common)
3. Defective RS-232 cable or connector (occasional)

First check

Verify RS-232 interface is activated

Test point: Device configuration menu
Expected: RS-232 interface enabled status

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

S logo illumination does not toggle

S logo illumination does not turn on or off

Ranked causes

1. Key panel incorrectly connected (common)
2. Key panel defective (common)
3. Interaction panel board malfunction (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

SpO2 measurement not functional patient safety

SpO2 sensor communication board not responding or sensor reading not available in system display.

Ranked causes

1. SpO2 communication board not installed (common)
2. SpO2 sensor not activated in hardware options (common)
3. Incorrect sensor adapter type selected (occasional)

First check

Verify SpO2 communication board is installed

Test point: System Info tab
Expected: SpO2 communication board information displayed

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Tightness system test fails

Pneumatic tightness or leak test does not pass

Ranked causes

1. System pneumatic leak (common)
2. Expiratory valve membrane degraded (common)
3. Pneumatic component defective (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Alarming system test shows incorrect priorities patient safety

Alarm priority sequence or hierarchy is incorrect during system test

Ranked causes

1. Outdated software version (common)
3. Persistent priority issue (rare)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Ambient valve test fails

Ambient valve pneumatic test does not pass with NOT OK status message

Ranked causes

1. Ambient valve improperly installed (common)
2. Ambient valve malfunction (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery calibration required message displayed patient safety

Device displays 'Battery calibration required' message on screen

Ranked causes

1. Battery capacity reduced by more than 25% (common)
2. Battery requires calibration cycle (occasional)

First check

Verify battery capacity via Service Software

Test point: Service Software display (SW ≥ 1.0.0)
Expected: Full charge capacity (fc.) value shown; capacity should be >= 80% of designed capacity (4000 mAh for HAMILTON-C6), >= 80% of design capacity

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bottom fan airflow insufficient caution

Paper does not stick to bottom fan inlet; airflow not being drawn into ventilator correctly

Ranked causes

1. Bottom fan motor failure or blockage (occasional)
2. Fan motor not powered (occasional)

First check

Visually inspect bottom fan inlet for blockage

Test point: Bottom fan inlet
Expected: Clear of obstructions, no dust accumulation

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Buzzer does not sound during power loss patient safety

Alarm buzzer fails to activate or sounds for less than two minutes when power is lost

Ranked causes

1. Super capacitors (gold caps) not fully charged (common)
2. Mainboard failure or defective gold capacitors (rare)

First check

Verify device has been powered for at least 20 minutes

Test point: Device operation time
Expected: 20 minutes minimum operating time in standby or service mode

2 more checks with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Device does not switch to battery power patient safety

Ventilator does not transition to battery operation when mains power is disconnected

Ranked causes

1. Battery not installed or discharged (common)
2. Battery charging circuit failure (occasional)

First check

Verify internal batteries are installed

Test point: Battery compartment
Expected: Batteries present and seated

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Expiratory valve heater element not warming caution

Expiratory valve internal surface does not heat up during operation; heater element not functioning

Ranked causes

1. Heater element defective (occasional)
2. Heater not powered during HiFlow mode (common)

First check

Verify device is powered from AC mains

Test point: AC power inlet
Expected: Device operating on AC power

3 more checks with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Nurse call relay not responding patient safety

Nurse call alarm relays do not change state during alarm activation or ventilation phases; interface not functional

Ranked causes

1. Nurse call connector not properly seated (common)
2. Relay contacts defective or stuck (occasional)

First check

Verify nurse call connector is installed

Test point: Communication board connector
Expected: PN 160166 connector fully seated

4 more checks with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

O2 mixer system values out of tolerance

Oxygen mixer measurement values are outside acceptable tolerance during system test

Ranked causes

1. High pressure oxygen supply disconnected (common)
2. Qvent sensor malfunction (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

O2 sensor calibration fails

Gain calibration cannot be completed for oxygen sensor

Ranked causes

1. O2 sensor cable disconnected or damaged (common)
2. Faulty O2 sensor (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

O2 sensor gain calibration fails

Oxygen sensor gain calibration procedure does not complete or fails validation

Ranked causes

1. O2 sensor cable disconnected (common)
2. O2 sensor malfunction (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Proximal flow test fails

Proximal flow measurement test does not pass with NOT OK status message

Ranked causes

1. Qvent sensor malfunction (common)
2. Pressure sensor assembly failure (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Proximal pressure test fails

Proximal pressure measurement test does not pass with NOT OK status message

Ranked causes

1. Autozero valve malfunction (common)
2. Pressure sensor assembly failure (common)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Proximal test flow through sensors not equal

Flow through both flow sensor connectors are not equal during rinse flow test

Ranked causes

1. Pressure sensor assembly malfunction (common)
2. Rinse flow assembly malfunction (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Rear fan airflow insufficient caution

Paper does not stick to rear fan inlet; airflow not being drawn into ventilator correctly

Ranked causes

1. Rear fan motor failure or blockage (occasional)
2. Fan motor not powered (occasional)

First check

Visually inspect rear fan inlet for blockage

Test point: Rear fan inlet
Expected: Clear of obstructions, no dust accumulation

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Status indicator LEDs not appearing as required

One or more LEDs on the status indicator board do not display

Ranked causes

1. Status indicator board connection fault (common)
2. Ventilator mainboard failure (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Alarm loudness not increasing

Alarm volume does not increase when loudness setting is adjusted to maximum

Ranked causes

1. Alarm system malfunction (unknown)

First check

Verify device is connected to mains AC power

Test point: AC power inlet
Expected: Device powered from mains

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Ambient test fails

Ambient sensor or environmental test does not pass

Ranked causes

1. Ventilator mainboard failure (common)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Autozero test fails

Autozero valve pneumatic test does not pass with NOT OK status

Ranked causes

1. Pressure sensor assembly failure (common)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery capacity degradation at end-of-life patient safety

Reduced battery capacity leads to unreliable fuel gauge information and risk of unexpected ventilation stop during power failure

Ranked causes

1. Battery end-of-life degradation (common)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery capacity reduced below threshold patient safety

Device displays 'Battery calibration required' message; capacity loss exceeds 25% of designed capacity

Ranked causes

1. Battery aged past 80% capacity threshold (common)

First check

Check battery capacity in Service Software

Test point: Service Software display
Expected: Capacity at or above 4000 mAh (80% of 5000 mAh design capacity), ≥4000 mAh
Tools: Service Software SW ≥ 1.0.0

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery cell voltages asymmetrical patient safety

Cell voltage difference exceeds 100 mV, indicating unbalanced or failing battery cells.

Ranked causes

1. Battery cells unbalanced or failing (occasional)

First check

Read cell voltages from battery data

Test point: Battery data via service software
Expected: Cell voltage difference ≤ 100 mV, ±100 mV

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Battery condition maintenance check

Routine assessment of battery health and proper storage conditions during preventive maintenance

Ranked causes

1. Annual maintenance cycle requirement (common)

First check

Verify battery manufacture date and capacity history

Test point: Battery connector (top) and Service Software
Expected: Manufacture date visible; capacity trend stable or improving; cycle count documented

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

More symptoms

Battery error calibration required
Battery error reading exceeds tolerance
Battery state of health low
Binary valve test shows short circuit
Calibration: Battery charger maintenance cycle
Calibration: Battery fuel gauge
Excess pressure in breathing circuit during inspiration
Exhalation obstructed alarm triggered
Front panel keys or LEDs do not function
Knob range does not function
QO2 value out of tolerance
Reset calibration to default settings
Weak batteries causing incorrect fuel gauge or unexpected ventilation stop
Weak batteries detected

14 more symptoms with ranked causes and checks are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`132001`	Low airway pressure	Airway pressure falls below set threshold	warning
`132002`	Check flow sensor tubing	Flow sensor tubing issue detected	warning
`132003`	Check flow sensor	Flow sensor malfunction detected	warning
`132004`	Check flow sensor	Flow sensor missing or not detected	error
`132005`	O2 sensor defective	O2 sensor malfunction detected	error
`132006`	O2 sensor missing	O2 sensor not detected	error
`132007`	O2 sensor not system compatible	Incompatible O2 sensor detected	error
`132008`	O2 sensor calibration needed	O2 sensor requires calibration	warning
`132010`	CO2 sensor disconnected	CO2 sensor connection lost	error
`132011`	CO2 sensor defect	CO2 sensor malfunction detected	error
`132012`	CO2 sensor over temperature	CO2 sensor temperature exceeds limit	error
`132013`	CO2 sensor warmup	CO2 sensor warming up after power-on or reset	info
`132014`	Wrong flow sensor	Incompatible or incorrect flow sensor detected	error
`132015`	Flow sensor calibration needed	Flow sensor requires calibration	warning
`132016`	Check CO2 airway adapter	CO2 airway adapter issue detected	warning
`132017`	Check CO2 sampling line	CO2 sampling line problem detected	warning
`132018`	SpO2: patient disconnected	SpO2 sensor detects patient disconnection	warning
`132019`	SpO2: probe missing	SpO2 probe not detected	error
`132020`	SpO2: low perfusion index	Blood perfusion at sensor site too low	warning
`132021`	SpO2: light interference	Ambient light interferes with SpO2 reading	warning
`132022`	SpO2: sensor error	SpO2 sensor malfunction detected	error
`132023`	SpO2: adapter missing	SpO2 adapter not detected or disconnected	error
`132024`	Circuit calibration needed	Patient circuit requires calibration	warning
`132025`	SpO2: poor signal	SpO2 signal quality insufficient	warning
`132026`	Check flow sensor tubing	Flow sensor tubing disconnected or problem detected	warning
`132027`	Check flow sensor tubing	Pressure differential sensor tubing disconnected	warning
`132028`	Flow sensor calibration needed	Flow sensor requires low-priority calibration	warning
`133001`	Apnea detected	Patient apnea detected (no breathing)	critical
`133002`	Inspiratory volume limitation	Tidal volume exceeds set limit	warning
`133003`	High pressure	Airway pressure exceeds alarm threshold	error
`133004`	Check patient interface	Problem with patient interface detected	warning
`141001`	Pressure limitation	Ventilation reaches pressure limit during inspiration	warning
`141002`	Vt high	Tidal volume exceeds high threshold	warning
`141003`	Vt low	Tidal volume falls below low threshold	warning
`141004`	High minute volume	Total minute ventilation exceeds high limit	warning
`141005`	Low minute volume	Total minute ventilation falls below low limit	warning
`141006`	High frequency	Respiratory frequency exceeds high limit	warning
`141007`	Low frequency	Respiratory frequency falls below low limit	warning
`141008`	High oxygen	O2 concentration exceeds high limit	warning
`141009`	Low oxygen	O2 concentration falls below low limit	error
`141010`	Apnea	Patient apnea detected (no breathing)	critical
`141011`	Apnea ventilation ended	Apnea ventilation backup support ended	info
`141012`	Apnea ventilation	Backup ventilation activated due to apnea	warning
`141013`	High pressure during sigh	Airway pressure exceeds limit during sigh breath	warning
`141014`	Turn the flow sensor	Flow sensor orientation incorrect	warning
`141016`	Disconnection on ventilator side	Ventilator detects disconnection at ventilator-side circuit	error
`141017`	Disconnection on patient side	Ventilator detects disconnection at patient interface	error
`141018`	Exhalation obstructed	Exhalation pathway blocked or obstructed	error
`141019`	IRV	Inspiratory reserve volume alarm activated	unknown
`141020`	ASV: Cannot meet target	Adaptive Support Ventilation unable to achieve target	warning
`141021`	Pressure limit has changed	Pressure limit parameter modified during ASV operation	info
`141023`	External flow sensor failed	External flow sensor malfunction detected	error
`141024`	Low pressure	Airway pressure falls below low threshold	error
`141025`	PetCO2 high	End-tidal CO2 exceeds high limit	warning
`141026`	PetCO2 low	End-tidal CO2 falls below low limit	warning
`141027`	Suctioning maneuver	Suctioning maneuver activated or in progress	info
`141028`	Performance limited by high altitude	Ventilator performance affected by high altitude	warning
`141029`	High SpO2	Oxygen saturation exceeds high limit	warning
`141030`	Low SpO2	Oxygen saturation falls below low limit (medium priority)	warning
`141031`	High pulse	Heart rate exceeds high limit	warning
`141032`	Low pulse	Heart rate falls below low limit	warning
`141033`	High PI	Perfusion index exceeds high limit	warning
`141034`	Low PI	Perfusion index falls below low limit	warning
`141035`	High SpHb	Hemoglobin saturation exceeds high limit	warning
`141036`	Low SpHb	Hemoglobin saturation falls below low limit	warning
`141037`	High SpCO	Carboxyhemoglobin exceeds high limit	error
`141038`	Low SpCO	Carboxyhemoglobin falls below low limit	info
`141039`	High SpMet	Methemoglobin exceeds high limit	warning
`141040`	Low SpMet	Methemoglobin falls below low limit	info
`141041`	Low SpO2	Oxygen saturation falls below low limit (high priority)	critical
`141043`	Ventilation adjustment OFF	Ventilation adjustment function disabled	info
`141044`	Oxygenation adjustment OFF	Oxygenation adjustment function disabled	info
`141045`	Ventilation Controller at limit	Ventilation controller reached upper limit	warning
`141046`	Oxygenation Controller at limit	Oxygenation controller reached upper limit	warning
`141047`	High flow	Flow rate exceeds high limit in nCPAP mode	warning
`141048`	Obstruction	Circuit obstruction detected	error
`141049`	High flow	Flow rate exceeds high limit	warning
`141050`	Sensor simulation active	Sensor simulation mode is active during operation	critical
`141051`	High PEEP	Positive end-expiratory pressure exceeds high limit	warning
`141052`	Loss of PEEP	PEEP falls below set threshold or is lost	error
`141053`	FiO2 set to 100% due to low SpO2	Oxygen concentration automatically set to maximum due to hypoxia	critical
`141054`	Recruitment in progress	Recruitment maneuver running	info
`141055`	Oxygen control limit exceeded	Oxygen concentration exceeded configured limit	warning
`141056`	SBT aborted	Spontaneous breathing trial did not complete	warning
`141057`	SBT successfully fulfilled	Spontaneous breathing trial completed successfully	info
`141058`	High PVI	Pleth Variability Index above threshold	warning
`141059`	Low PVI	Pleth Variability Index below threshold	warning
`141060`	Check flow sensor for water	Water detected in flow sensor	warning
`141061`	Check flow sensor for water (high priority)	Water in flow sensor requiring immediate attention	warning
`141062`	SpeakValve ON	Speaking valve activated	info
`141063`	SpeakValve OFF	Speaking valve deactivated	info
`141064`	Vt low (high priority)	Tidal volume below alarm limit	warning
`141065`	Check patient interface	Patient interface connectivity or configuration error	warning
`141066`	Maximum leak compensation	Leak compensation reaches maximum threshold	warning
`231001`	Technical event: pressure controller pressure low	Inspiratory pressure below normal operating range	error
`231002`	Technical event: pressure controller pressure high	Inspiratory pressure above normal operating range	error
`231003`	Technical event: flow controller flow low	Measured flow below expected range	error
`231004`	Technical event: flow controller flow high	Measured flow exceeds normal range	error
`231005`	Technical event: inspiration valve leak	Inspiratory valve not sealing properly	error
`231006`	Oxygen supply failed	Oxygen flow from controller too low	critical
`231007`	Technical event: O2 controller flow high	Oxygen flow exceeds normal range	error
`231008`	Technical event: O2 valve leak	Oxygen valve not sealing	error
`231009`	Technical event: blower controller speed low	Blower rotation speed below normal	error
`231010`	Technical event: blower controller speed high	Blower rotation speed exceeds normal range	error
`231011`	Vent outlet temperature high	Exhaust temperature exceeds safe limit	warning
`231012`	Technical event: qvent flow sensor defect	Main flow sensor malfunction detected	error
`231013`	Technical event: qO2 flow sensor defect	Oxygen flow sensor malfunction	error
`231014`	Technical event: ambient valve error	Ambient pressure relief valve malfunction	error
`231017`	Blower service required	Blower maintenance interval reached or motor degradation detected	warning
`231018`	Technical event: self-test with error	Internal self-test detected abnormality	error
`231019`	Technical event: inspiration valve sensor defect	Inspiratory valve position sensor failure	error
`231020`	Technical event: regulator data log on	Regulator data logging active for diagnostics	info
`231022`	Technical event: pExp valve sensor defect	Expiratory pressure valve sensor malfunction	error
`231023`	Technical event: invalid flow sensor	Flow sensor type not recognized or unsupported	error
`231027`	Wrong expiratory valve	Expiratory valve type does not match ventilator configuration	error
`231032`	Technical event: expiration valve disconnected	Expiratory valve not properly connected	error
`231033`	Technical event: blower controller speed limited	Blower speed reduced below normal operating range	warning
`231036`	Technical event: pvent pressure sensor defect	Inspiratory pressure sensor malfunction	error
`232002`	Technical event: pvent monitor sensor defect	Pressure monitoring sensor malfunction	error
`232003`	Technical event: Paw sensor defect	Airway pressure sensor malfunction	error
`232004`	Pressure not released	System unable to vent pressurized circuit	warning
`232005`	Technical event: blower hot	Blower motor temperature elevated	warning
`232006`	Technical event: blower temperature sensor defect	Temperature sensor malfunction on blower	error
`232007`	Check flow sensor tubing	Airway flow sensor tubing obstruction or disconnection	warning
`232008`	Technical event: pambient sensor defect	Ambient pressure sensor malfunction	error
`232028`	Technical event: pFilter pressure high	Pressure drop across inlet filter exceeds limit	error
`232029`	Technical event: tinst sensor defect	Internal temperature sensor malfunction	error
`232030`	Technical event: clock error	Internal real-time clock malfunction	error
`232034`	Replace O2 sensor	Oxygen cell depleted or defective	warning
`232035`	Technical event: pfilter sensor defect	Filter pressure sensor malfunction	error
`232038`	CO2 calibration needed	Carbon dioxide sensor requires calibration	warning
`232045`	Technical event: SpO2 sensor settings error	Pulse oximetry sensor configuration error	error
`232056`	Technical event: pAmbient pFilter mismatch	Ambient and filter pressure sensors disagree	error
`232057`	Technical event: SpO2 sensor change failed	Pulse oximetry sensor replacement not recognized	error
`233008`	Aerogen nebulizer disconnected	Aerogen nebulizer becomes disconnected from ventilator	warning
`234001`	Loudspeaker defective	Loudspeaker failure detected during operation or startup	warning
`241001`	Replace HEPA filter	HEPA filter has reached end of service life	warning
`241002`	Release valve defective	Tightness test detects release valve failure	error
`243004`	Buzzer defective	Buzzer failure detected at startup	warning
`243007`	Realtime clock failure	Real-time clock (RTC) has been reset or failed	error
`243010`	Panel connection lost	Communication lost with control panel	error
`244001`	Loss of external power	Mains power supply disconnected or failed	critical
`244002`	Battery 1: Calibration required	Battery 1 requires calibration	warning
`244003`	Battery 2: Calibration required	Battery 2 requires calibration	warning
`244004`	Battery 1: Temperature high	Battery 1 temperature exceeds safe operating range	warning
`244005`	Battery 2: Temperature high	Battery 2 temperature exceeds safe operating range	warning
`244006`	Battery low	Battery charge level falls below high priority threshold	warning
`244007`	Battery power loss	Battery power supply has failed completely	critical
`244008`	Battery 1: Wrong battery	Incompatible or incorrect battery installed in slot 1	error
`244009`	Battery 2: Wrong battery	Incompatible or incorrect battery installed in slot 2	error
`244010`	Battery low	Battery charge level falls below low priority threshold	warning
`244011`	Battery communication error	Battery management bus communication failure	error
`244012`	Battery 1: Defective	Battery 1 hardware failure detected	error
`244013`	Battery 2: Defective	Battery 2 hardware failure detected	error
`244015`	Battery low	Battery charge level falls below medium priority threshold	warning
`244016`	Battery 1: Replacement required	Battery 1 has reached end of service life	warning
`244017`	Battery 2: Replacement required	Battery 2 has reached end of service life	warning
`244019`	Technical event: 28V_IP voltage out of tolerance	28V auxiliary voltage outside specified limits	error
`244022`	Continue charging battery	Battery charging in progress; normal operation	info
`246001`	Preventive maintenance required	Service interval reached	warning
`246003`	Fan failure	Cooling fan hardware failure detected	error
`246016`	Touch not functional	Touch screen or touch panel failed during POST	error
`246020`	Loudspeaker defective	HMI loudspeaker hardware failure	warning
`246040`	Ventilator overpressure self-test failed	Self-test execution during startup or diagnostics	error
`246041`	Alarm LED error	LED circuit failure or lamp defect	error
`249001`	Options not found	Configuration file missing or unreadable on startup	error
`249002`	Option file write error	Failed to write option file to storage	error
`249003`	Option file version mismatch	Option file version incompatible with current firmware	error
`249004`	Default option file generated	Option file missing or unreadable, defaults applied	info
`249010`	Device configuration file error	Device configuration file read/write failure	error
`249011`	Setup configuration file error	Setup configuration file read/write failure	error
`249012`	Last setting configuration file error	Last settings file read/write failure	error
`249013`	Research configuration file error	Research configuration file read/write failure	error
`249020`	Invalid communication board	Unrecognized or incompatible option board detected	error
`249021`	Check hardware compatibility	Installed hardware incompatible with firmware or configuration	warning
`250001`	Check humidifier communication	Humidifier interface communication failure	error
`250002`	Humidifier water low	Water level below minimum threshold	warning
`250003`	Humidifier chamber temperature low	Chamber temperature below set point	warning
`250004`	Humidifier Y-piece temperature low	Y-piece temperature below set point	warning
`250005`	Humidifier check right tube	Right tube temperature or connection issue detected	warning
`250006`	Humidifier check left tube	Left tube temperature or connection issue detected	warning
`250007`	Humidifier check chamber	Chamber malfunction or connection error detected	warning
`250008`	Check humidifier	General humidifier malfunction detected	warning
`250009`	Humidifier error	Humidifier subsystem critical error	error
`250010`	Humidifier water high	Water level above maximum threshold	warning
`250011`	Humidifier chamber temperature high	Chamber temperature above set point	warning
`250012`	Humidifier Y-piece temperature high	Y-piece temperature above set point	warning
`250013`	Humidifier tilt	Humidifier orientation/tilt detected abnormal	critical
`250014`	Check humidifier	Humidifier malfunction or high-level fault detected	error
`251001`	Check IntelliCuff communication	IntelliCuff interface communication failure	error
`251002`	Check IntelliCuff	IntelliCuff battery low or malfunction	warning
`251003`	Cannot turn off IntelliCuff	IntelliCuff power-off command failed	error
`251004`	Check IntelliCuff	IntelliCuff battery level critically low	warning
`251005`	Cuff pressure high	Measured cuff pressure exceeds safe limit	critical
`251006`	Cuff deflated	Cuff remained deflated for extended period	warning
`251007`	Cuff leak	Cuff pressure drop indicating air leak	error
`251008`	Check IntelliCuff	IntelliCuff malfunction at medium severity level	warning
`251009`	Cuff leak	IntelliCuff disconnection or interface failure detected	error
`251010`	Check IntelliCuff	IntelliCuff critical error condition	error
`251011`	Check IntelliCuff	IntelliCuff battery at critical level	critical
`251012`	Check IntelliCuff	IntelliCuff malfunction at high severity level	error
`251013`	Check IntelliCuff state	IntelliCuff state invalid or unexpected	warning
`255001`	Percentage minimum volume high limit test failed	Self-test of min volume limit failed during startup	error
`255002`	Percentage minimum volume high limit wrong	Configured min volume limit exceeds acceptable range	warning
`255003`	Percentage minimum volume low limit test failed	Self-test of min volume limit failed during startup	error
`255004`	Percentage minimum volume low limit wrong	Configured min volume limit below acceptable range	warning
`255005`	PEEP high limit wrong	Configured PEEP high limit exceeds acceptable range	warning
`255006`	PEEP high limit test failed	Self-test of PEEP high limit failed	error
`255007`	PEEP low limit wrong	Configured PEEP low limit below acceptable range	warning
`255008`	PEEP low limit test failed	Self-test of PEEP low limit failed	error
`255009`	Oxygen low test failed	Self-test of oxygen system failed	error
`255010`	Oxygen high test failed	Self-test of oxygen system upper limit failed	error
`255011`	Percentage minimum volume positive change test failed	Self-test of min volume increase failed	error
`255012`	Percentage minimum volume negative change test failed	Self-test of min volume decrease failed	error
`255013`	PEEP positive change test failed	Self-test of PEEP increase failed	error
`255014`	PEEP negative change test failed	Self-test of PEEP decrease failed	error
`255015`	Oxygen positive change test failed	Self-test of oxygen increase failed	error
`255016`	Oxygen negative change test failed	Self-test of oxygen decrease failed	error
`255017`	Recruitment running time exceeded	Recruitment maneuver running time exceeded limit	warning
`255018`	Simulation supervise test failed	Internal simulation/test supervision failed	error
`255019`	Percentage minimum volume high fine adjustment test failed	Self-test of min volume fine limit failed	error
`255020`	Percentage minimum volume high fine limit wrong	Configured min volume fine limit exceeds range	warning
`255021`	Percentage minimum volume low fine adjustment test failed	Self-test of min volume fine limit failed	error
`255022`	Percentage minimum volume low fine limit wrong	Configured min volume fine limit below range	warning
`255023`	Oscillation oxygen	Oxygen parameter oscillating during operation	warning
`255024`	Oscillation PEEP/CPAP	PEEP/CPAP pressure oscillating during operation	warning
`255025`	Oscillation percentage minimum volume	Minimum volume parameter oscillating during operation	warning
`255026`	Data mismatch	Internal data consistency error detected	error
`255027`	PetCO2 frozen test failed	PetCO2 measurement frozen or not updating	error
`255028`	SpO2 frozen test failed	SpO2 measurement frozen or not updating	error
`255029`	Spontaneous frequency frozen test failed	Spontaneous breathing rate frozen or not updating	error
`283001`	Startup failed	Display GUI startup failed during boot	error
`283003`	Language not loaded	Language file failed to load on startup	error
`283005`	Settings file error	Display settings file read/write failure	error
`283008`	Check settings	Invalid or suspicious settings detected	warning
`283009`	Self test failed	Display self-test failed during startup	error
`283010`	No ventilation after power-fail	Ventilation did not resume after power failure recovery	critical
`283011`	Check IntelliCuff state	IntelliCuff state invalid on display startup	error
`283012`	Panel settings file error	Panel hardware settings file read/write failure	error
`284002`	Technical event alarm service high	Service alarm high priority triggered	critical
`284003`	Technical event alarm service medium	Service alarm medium priority triggered	warning
`284004`	Technical event alarm service low	Service alarm low priority triggered	info
`284005`	Flow sensor calibration needed	Flow sensor calibration overdue or required	warning
`284006`	Restart device to enable tests/calibration	Device restart required to access test/calibration mode	info
`285001`	Alarm lamp error defect	Error alarm lamp hardware failure detected	error
`285002`	Alarm lamp warning defect	Warning alarm lamp hardware failure detected	error
`285003`	Backlight defect	Display backlight hardware failure detected	error
`285004`	Function key not operational	Hardware key/button malfunction detected	error
`285005`	Touch not functional	Touch screen interface malfunction detected	error
`291001`	Remote communication error (COM1)	COM1 port communication error detected	error
`291002`	Remote communication error (COM2)	COM2 port communication error detected	error
`291003`	Remote communication timeout (COM1)	COM1 communication timeout no response received	error
`291004`	Remote communication timeout (COM2)	COM2 communication timeout no response received	error
`296001`	Remote control active	Remote control mode is currently active	info
`332001`	Flow sensor error	Safety mode technical failure detected	critical
`341001`	Breath settings not accepted	Settings rejected during mode configuration	error
`341002`	Returned breath settings incorrect	Mismatch between sent and confirmed settings	error
`341003`	Adaptive settings invalid	Adaptive control settings validation failure	warning
`341004`	Breath settings timeout	Settings not confirmed within timeout window	error
`341005`	Controller settings invalid	Controller parameter validation failed	error
`341006`	Returned alarm limits incorrect	Alarm limit confirmation mismatch	error
`341007`	Mode transition not defined	Requested ventilation mode transition unsupported	warning
`341008`	Ventilation flow sensor defect	Flow sensor failure detected	critical
`341009`	Ventilation pressure sensor defect	Pressure sensor failure detected	critical
`343001`	Communication timeout	Alarm module communication lost	error
`346002`	Watchdog failed: ALR	Low level supervisor watchdog timeout on alarm module	critical
`346003`	Watchdog failed: ALR measurement	Alarm module measurement watchdog timeout	critical
`346004`	Watchdog failed: ESL	Low level supervisor watchdog timeout on ESL	critical
`346005`	Watchdog failed: ESL MMI log	Watchdog timeout in MMI logging task	warning
`346006`	Watchdog failed: ESL control log	Watchdog timeout in control logging task	error
`346007`	Watchdog failed: ESL breath log	Watchdog timeout in breath monitoring log	error
`346008`	Watchdog failed: ESL event SDR reader	Watchdog timeout in event storage device reader	error
`346009`	Watchdog failed: ESL service SDR reader	Watchdog timeout in service storage device reader	warning
`346010`	Watchdog failed: ESL event SDR writer	Watchdog timeout in event storage device writer	error
`346011`	Watchdog failed: ESL service SDR writer	Watchdog timeout in service storage device writer	warning
`346012`	Watchdog failed: ESL measurement	Watchdog timeout in ESL measurement processing	critical
`346013`	Watchdog failed: GUIL touch	Watchdog timeout in touch screen interface	error
`346014`	Watchdog failed: GUIL PT knob	Watchdog timeout in pressure-time knob interface	error
`346015`	Watchdog failed: GUIL hardkeys	Watchdog timeout in hardkey input processing	error
`346016`	Watchdog failed: GUIL screenshot	Watchdog timeout in screenshot capture function	warning
`346017`	Watchdog failed: LM	Low level supervisor watchdog timeout on language module	error
`346019`	Watchdog failed: LLS hardware exception	Hardware exception in low level supervisor	critical
`346020`	Watchdog failed: LLS common server	Watchdog timeout in common service server	error
`346022`	Watchdog failed: LLS alarm status	Watchdog timeout in alarm status monitoring	error
`346023`	Watchdog failed: LLS measurement	Watchdog timeout in LLS measurement processing	critical
`346024`	Watchdog failed: PM	Watchdog timeout on power management module	critical
`346025`	Watchdog failed: PM measurement	Watchdog timeout in PM measurement function	error
`346026`	Watchdog failed: QSPI	Watchdog timeout on QSPI interface	critical
`346027`	Watchdog failed: QSPI MMI server	Watchdog timeout in QSPI MMI server	error
`346028`	Watchdog failed: QSPI BM server	Watchdog timeout in QSPI blower/motor server	error
`346029`	Watchdog failed: QSPI BPG server	Watchdog timeout in QSPI breath pattern generator server	error
`346030`	Watchdog failed: QSPI LLS server	Watchdog timeout in QSPI LLS server	critical
`346031`	Watchdog failed: QSPI interface	Watchdog timeout on QSPI serial interface	critical
`346032`	Watchdog failed: QSPI measurement	Watchdog timeout in QSPI measurement	error
`346033`	Watchdog failed: RTC real time clock	Watchdog timeout in real time clock	error
`346034`	Watchdog failed: RTC alarm clock	Watchdog timeout in alarm clock function	warning
`346035`	Watchdog failed: SC	Watchdog timeout on service controller	error
`346036`	Watchdog failed: SGUI	Watchdog timeout on service GUI	warning
`346037`	Watchdog failed: STU	Watchdog timeout on STU module	error
`346038`	Watchdog failed: VMC	Watchdog timeout on ventilation mode controller	critical
`346039`	Watchdog failed: VMC ventilation alarming	Watchdog timeout in VMC alarm task	error
`346040`	Watchdog failed: VMC ventilation control	Watchdog timeout in VMC control task	critical
`346041`	Watchdog failed: VMC ventilation monitoring	Watchdog timeout in VMC monitoring task	critical
`346042`	Watchdog failed: VMC measurement	Watchdog timeout in VMC measurement	error
`346043`	Watchdog failed: VGUI	Watchdog timeout on ventilation GUI	error
`346044`	Watchdog failed: VGUI mode control	Watchdog timeout in VGUI mode control task	error
`346045`	Watchdog failed: VGUI measurement	Watchdog timeout in VGUI measurement	error
`346046`	Watchdog failed: LLS EEPROM write	Watchdog timeout in EEPROM write operation	error
`346047`	Watchdog failed: BM alarming slow	Watchdog timeout in blower motor alarming	warning
`346048`	Watchdog failed: SND sound control	Watchdog timeout in sound control module	warning
`346049`	Watchdog failed: SND sound	Watchdog timeout in sound generation	warning
`346050`	Watchdog failed: VT	Watchdog timeout on ventilation timing module	critical
`346051`	Watchdog failed: CFG configuration	Watchdog timeout in configuration module	error
`346052`	Watchdog failed: EXM communication base	Watchdog timeout in external communication base	error
`346053`	Watchdog failed: IVS	Watchdog timeout on IVS module	error
`346054`	Safety failure detected	General safety system failure detected	critical
`346055`	Watchdog failed: PD black box logging	Watchdog timeout in black box data logging	warning
`346056`	Watchdog failed: EXM COM1	Watchdog timeout on EXM communication port 1	error
`346057`	Watchdog failed: EXM COM2	Watchdog timeout on EXM communication port 2	error
`383001`	Settings not accepted	Ventilation GUI settings rejected	warning
`383002`	Returned settings incorrect	Confirmation of GUI settings does not match sent values	error
`383003`	Settings validation error	GUI settings fail validation check	warning
`383004`	Monitoring channel observation failed	GUI monitoring channel lost or unresponsive	error
`383005`	VMC timeout	Communication timeout between GUI and VMC	error
`383006`	Returned device settings incorrect	Device settings confirmation mismatch	error
`383007`	Trending channel observation failed	GUI trending data channel lost	warning
`383008`	Startup basic startup failure	VGUI basic startup sequence failed	critical
`383009`	Startup screen failure	VGUI screen initialization failed	critical
`383010`	Startup load GUI basics failure	VGUI fails to load basic GUI resources	critical
`383011`	Startup selftest prolog failure	VGUI startup self-test initialization failed	error
`383012`	Startup selftest failure	VGUI startup self-test detected hardware fault	critical
`383013`	Startup selftest epilog failure	VGUI self-test cleanup phase failed	error
`383014`	Startup loading bitmaps failure	VGUI fails to load bitmap resources	error
`383015`	Startup initialization failure	VGUI initialization phase failed	critical
`384001`	Startup basic startup failure	SGUI basic startup sequence failed	critical
`384002`	Startup screen failure	SGUI screen initialization failed	critical
`384003`	Startup load GUI basics failure	SGUI fails to load basic GUI resources	critical
`384004`	Startup selftest prolog failure	SGUI startup self-test initialization failed	error
`384005`	Startup selftest failure	SGUI startup self-test detected hardware fault	critical
`384006`	Startup loading bitmaps failure	SGUI fails to load bitmap resources	error
`384007`	Startup initialization failure	SGUI initialization phase failed	critical
`385001`	Alarming channel observation failed	AGL alarming channel disconnected or lost	error
`385002`	Safety failure detected	AGL detected safety system fault	critical
`385003`	PM channel observation failed	AGL PM monitoring channel lost	error
`386001`	Bitmap not loaded	GUI layer fails to load bitmap resource	error
`431001`	Blower fault	Blower motor malfunction in ambient mode	critical
`431002`	Blower disconnected	Blower is not connected or powered	critical
`431004`	Inspiration valve overcurrent	Inspiration valve motor draws excessive current	error
`431006`	Expiration valve overcurrent	Expiration valve motor draws excessive current	error
`431007`	Vent output over temperature	Ventilation output exceeds safe temperature	critical
`431008`	Q-vent flow sensor error	Ventilation flow sensor malfunction	critical
`431009`	Q-O2 flow sensor error	Oxygen flow sensor malfunction	error
`431010`	Control REGSPI timeout	SPI communication timeout to control register	error
`431011`	Monitor REGSPI timeout	SPI communication timeout to monitor register	error
`431012`	Flow sensor measurement imprecise	Flow sensor reading variance exceeds tolerance	warning
`431013`	Calibration read failed	Stored calibration data cannot be retrieved	error
`431014`	Inspiration valve sensor defect	Inspiration valve position sensor malfunction	error
`431015`	Emergency off failed	Emergency shutdown did not execute successfully	critical
`431017`	Inspiration valve disconnected	Inspiration valve is not properly connected	critical
`432001`	Blower over temperature	Blower assembly exceeds safe operating temperature	critical
`432002`	Instrument over temperature	Ventilation instrument reaches excessive temperature	critical
`432003`	Pressure not released ambient	Pressure relief failed in ambient mode	error
`433001`	Breath monitoring tick timeout	Breath monitoring timing missed in BPG	error
`433002`	Control tick timing error	Control loop tick timing error in BPG	error
`443001`	Watchdog failed LLS	Ambient mode low level supervisor watchdog timeout	critical
`444001`	Battery totally discharged	Battery voltage depleted below minimum threshold	critical
`444004`	Voltage out of tolerance	Power supply voltage exceeds acceptable range	error
`444005`	Shutdown failed	Controlled shutdown sequence did not complete	error
`446001`	CPU temperature critical	CPU temperature exceeds critical limit	critical
`446002`	LLS safety subsystem failure	Safety monitoring system detects fault condition	critical
`446003`	LLS watchdog failed for gas delivery module	Watchdog timer timeout in gas delivery control	critical
`446004`	Watchdog failure for valve regulator in gas delivery	Valve regulator module timeout or lockup	critical
`446005`	Watchdog failure for blower regulator in gas delivery	Blower regulator module timeout or halted execution	critical
`446006`	Watchdog failure in gas delivery monitoring subsystem	Monitoring watchdog expired due to module unresponsiveness	critical
`446007`	Watchdog failure in valve control logging subsystem	Valve log watchdog timeout during logging operation	error
`446008`	Watchdog failure in blower control logging subsystem	Blower log watchdog timeout or logger module hang	error
`446009`	Watchdog failure in flow measurement module of gas delivery	Flow measurement processor timeout or unresponsive execution	critical
`446010`	GPIO fault input detection failed in gas delivery watchdog	GPIO input monitoring watchdog expired	error
`446011`	Breath management module watchdog failure	BM (Breath Management) watchdog timeout detected	critical
`446012`	Watchdog failure in breath management gas delivery communication	BM-GD communication timeout or message queue failure	critical
`446013`	Hardware control watchdog failure in breath management	Hardware control watchdog expired or unresponsive	critical
`446014`	Breath parameter generator BPG client receiver watchdog failed	BPG client watchdog timeout in breath management	error
`446015`	Breath parameter generator BPG server receiver watchdog failed	BPG server watchdog timeout or server process hang	error
`446016`	Breath data calculation watchdog failure in breath management	Breath calculation algorithm timeout or hang	critical
`446017`	Flow measurement watchdog failure in breath management	BM flow measurement module watchdog timeout	error
`446018`	Breath parameter generator module watchdog failure	BPG module watchdog timer expired	critical
`446019`	BPG gas delivery client receiver watchdog failed	BPG client communication watchdog timeout	error
`446020`	BPG flow measurement watchdog failure	BPG flow measurement subsystem timeout or hang	error
`446021`	Exception occurred in LLS software	Unhandled exception or critical software error detected	critical
`446022`	LLS voltage error detected	Supply voltage monitoring detected out-of-range condition	critical
`446023`	LLS workload watchdog timeout	LLS workload processing exceeded timeout threshold	warning
`446024`	LLS 3.3V supply error	3.3V regulated supply out of specification	critical
`446025`	LLS analog-to-digital converter error	ADC calibration or conversion failure detected	error
`446026`	LLS reference voltage error	Vref supply out of range or unstable	error
`446028`	LLS clock error detected	System clock monitor detected oscillator or PLL failure	critical
`446029`	LLS ambient failure detected	Ambient monitor detected environmental fault condition	warning
`446030`	LLS watchdog occurred in analog module	Analog module watchdog timer timeout	error
`446031`	Restart ventilation failed in LLS	Ventilation restart command failed or timed out	critical
`446032`	Patient pressure overpressure condition detected	Patient line pressure exceeded safety threshold	critical
`481001`	STU first run migration error	System configuration migration failed on initial startup	error
`481002`	CRC error in system configuration	Configuration data CRC check failed during load	error
`481003`	Unknown part number detected	Unrecognized component part number in system configuration	warning
`481004`	Technical state failed	System state validation failed during initialization	error
`481005`	Synchronization error in system startup	Module synchronization timeout during system boot	error
`481006`	Reconnect startup type error	Reconnection startup mode not recognized or invalid	warning
`481007`	Reconnect accept error	System rejected reconnection attempt during startup	error
`483001`	VGUI startup basic startup failure	Ventilator GUI basic initialization failed during boot	error
`483002`	VGUI screen initialization failure	VGUI screen driver initialization failed	error
`483003`	VGUI basics loading failure	VGUI base framework failed to load	error
`483004`	VGUI self-test prolog failure	VGUI self-test initialization sequence failed	warning
`483005`	VGUI self-test failure	VGUI internal self-test detected failure condition	error
`483006`	VGUI self-test epilog failure	VGUI self-test completion sequence failed	warning
`483007`	VGUI bitmap loading failure	GUI bitmap or image resources failed to load	error
`483008`	VGUI initialization failure	VGUI full initialization sequence failed	error
`484001`	SGUI startup basic startup failure	Standby GUI basic initialization failed	error
`484002`	SGUI screen initialization failure	SGUI screen driver failed to initialize	error
`484003`	SGUI basics loading failure	SGUI framework failed to load during startup	error
`484004`	SGUI self-test prolog failure	SGUI self-test initialization sequence failed	warning
`484005`	SGUI self-test failure	SGUI self-test detected internal failure	error
`484007`	SGUI bitmap loading failure	SGUI image resources failed to load	error
`484008`	SGUI initialization failure	SGUI initialization sequence failed	error
`485001`	AGL ambient failure detected	Alarm GUI monitor detected environmental condition	warning
`743001`	Alarm controller watchdog failed for LLS	ALR module watchdog timeout detected	error
`743003`	ALR MMI connection lost	Alarm controller lost connection to man-machine interface	warning
`746001`	Patient panel LLS watchdog failure	LLS watchdog timeout detected by ALR module	error
`746002`	Patient panel VGUI watchdog failure	VGUI module watchdog timeout detected	error
`746003`	Patient panel VGUI mode control watchdog failure	VGUI mode control watchdog timeout	error
`746004`	Patient panel error failure detected	Panel error monitoring detected fault condition	error
`746005`	Patient panel LLS exception occurred	Unhandled exception in patient panel LLS	error
`746006`	Patient panel LLS workload watchdog failure	Patient panel workload processing timeout	warning
`746007`	Patient panel ventilation restart failed	Patient panel ventilation restart command failed	critical
`783001`	VGUI monitoring channel observation failed	VGUI monitoring signal lost or degraded	error
`783002`	VGUI trending channel observation failed	VGUI trend data acquisition lost or interrupted	error
`783003`	VGUI VMC timeout	VMC (Ventilator Management Controller) communication timeout	error
`785001`	AGL alarming channel observation failed	Alarm GUI alarm channel signal lost	error
`785002`	AGL panel error failure detected	AGL detected error in alarm panel interface	error
`785003`	AGL PM channel observation failed	AGL parameter monitoring channel observation lost	error
`Battery calibration required`	Battery capacity has declined below acceptable threshold	Battery capacity loss exceeds 25% of design capacity	warning
`Battery calibration required`	Battery capacity loss exceeds 25% of designed capacity; battery too weak for reliable operation	Battery capacity drops below 75% of designed capacity (below 3750 mAh for 5000 mAh design)	warning
`Red flashing LED`	Fuel gauge calibration required	Battery fuel gauge needs recalibration before use	warning
`Red solid LED`	Charger/calibrator error	Fault detected during charge or calibration cycle	error
`Weak battery`	Battery capacity reduced; device may provide inaccurate fuel gauge or fail to maintain ventilation on AC power loss	Battery end-of-life condition; capacity severely depleted	critical

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ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.