Patient monitors

GE Healthcare B125/B105: troubleshooting and error codes

The ServiceForge knowledge base holds 133 documented symptoms for the GE Healthcare B125/B105, with 189 ranked causes, 128 diagnostic checks with test points and expected values, and 63 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Unit does not power on from AC mains high voltage

Mains voltage indicator not lit, monitor connected to AC power, no battery installed

Ranked causes

1. Power cord loose (common)
2. Blown fuses (common)
3. Power cord faulty (occasional)
4. Power outlet does not meet specifications (occasional)
5. Cable loose or faulty between AC/DC module and AC inlet (occasional)
6. Cable loose or faulty between AC/DC module and carrier board (occasional)
7. AC/DC module defective (rare)
8. Carrier board defective (rare)

First check

Verify power cord connection

Test point: Wall outlet and monitor power inlet
Expected: Power cord fully seated

4 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Parameter module data not displayed

Parameter values from acquisition module not shown on monitor display

Ranked causes

1. Parameter module defective (occasional)
2. Module not connected properly (common)
3. Cable between frame and host not connected or defective (occasional)
4. Monitor display not configured for parameter (common)
5. Frame defective (rare)

First check

Verify module connection

Test point: Module connector at frame
Expected: Module fully seated and connected

1 more check with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit does not power on from battery

Monitor not connected to AC mains, powered from battery, monitor will not turn on

Ranked causes

1. Battery empty (common)
2. Battery failure (occasional)
3. Battery not installed (common)
4. Battery interface board loose or faulty (occasional)
5. Carrier board defective (rare)

First check

Check battery charge status

Test point: Battery and monitor
Expected: Battery fully charged

1 more check with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Audible alarms do not work patient safety

No sound from speaker during alarm conditions

Ranked causes

1. Audible alarms disabled (common)
2. Speaker failure (occasional)
3. Speaker cable loose or faulty (occasional)
4. Tone generator or audio amplifier failure (rare)

First check

Verify audible alarm setting

Test point: Alarms Setup menu
Expected: Audible alarms enabled

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

Battery LED indicator flashing orange caution

Orange flashing LED on monitor front panel battery indicator

Ranked causes

1. AC power input overvoltage (occasional)
2. Battery overvoltage (occasional)
3. Battery precharge timeout fault (occasional)
4. Battery fast charge timeout fault (occasional)

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

Display remains black or white after startup

Monitor starts with beep sound but display shows no image (black or white)

Ranked causes

1. Display cables loose (common)
2. Display panel defective (occasional)
3. LCD interface board defective (occasional)
4. Battery issue (rare)

First check

Verify display cable connection

Test point: Display cable connectors
Expected: Display cable fully seated and intact

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

IBP no pressure reading patient safety

Invasive blood pressure shows no reading or zero pressure

Ranked causes

1. Defective transducer (common)
2. Hemo module not connected (common)
3. Transducer adapter cable not connected (common)
4. Invasive pressure channel not configured to screen (common)

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

Acquisition module incompatible

Module does not work properly with patient monitor

Ranked causes

1. Incompatible module (occasional)
2. Connection issue (occasional)
3. Carrier board faulty (rare)

First check

Verify module compatibility

Test point: Module type and model
Expected: Module listed in compatible modules

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

Calibration: Invasive pressure transducer patient safety

Invasive pressure calibration procedure for pressure transducer replacement, functional check failure, or values outside specification limits

Ranked causes

1. Pressure transducer replaced with new type (common)
2. Invasive pressure functional check failed (occasional)
3. Measured value not within specification limits (occasional)

Calibration: Pressure channel patient safety

Channel calibration procedure with success, failure, and specific error conditions for invasive blood pressure measurement

Ranked causes

1. Pulsating waveform detected during calibration (common)
2. Gain beyond limits (±20% of default gain) (occasional)
3. Calibration reference value less than 100 mmHg (common)

First check

Monitor for pulsating waveform during calibration

Test point: pressure channel
Expected: Static pressure reading without pulsation

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

Module visual inspection for E-COP caution

Physical integrity check of module housing, connectors, and cleanliness prior to functional testing

Ranked causes

1. Module damaged during service or shipping (rare)
2. Connector corrosion or poor seating (occasional)
3. Contamination affecting electrical performance (occasional)

First check

Inspect module front cover for cracks or damage

Test point: Front cover surface
Expected: Intact, no visible damage

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

Recorder does not work

Recorder unit fails to operate or produce output

Ranked causes

1. Recorder connect cable loose or faulty (common)
2. Recorder unit failure (occasional)
3. Carrier board issue (rare)

First check

Check recorder cable connection

Test point: Recorder connect cable
Expected: Cable fully seated and intact

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

Temperature not displayed

No temperature reading or value shown on monitor display

Ranked causes

1. Temperature channel not configured to screen (common)
2. Temperature out of measurable range (occasional)
3. Incompatible temperature probe (occasional)

First check

Verify temperature is within measurable range

Test point: Temperature reading
Expected: 10-45 °C, 10 to 45 °C

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

Unit does not power on with AC mains and charged battery installed high voltage

Monitor connected to AC mains with fully charged battery installed but will not turn on

Ranked causes

1. On/Off key faulty (occasional)
2. LCD interface board defective (occasional)
3. Carrier board defective (rare)

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

Zeroing: Invasive blood pressure channel patient safety

Zeroing procedure for IBP channels with status messages and failure conditions

Ranked causes

1. Pulsating waveform detected during zeroing (common)
2. Defective transducer (occasional)
3. Offset greater than 150 mmHg (occasional)

First check

Monitor for pulsating waveform during zeroing

Test point: pressure channel
Expected: No pulsation; static baseline

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

Alarm light does not illuminate patient safety

Alarm light not lit on monitor front panel; audible alarms work and alarm message visible

Ranked causes

1. Alarm interface cable loose or faulty (common)
2. Alarm LED board faulty (occasional)

First check

Check alarm interface cable

Test point: Alarm cable connection to LCD interface board
Expected: Cable intact and properly connected

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

Gas exhaust blockage detected caution

Monitor displays 'Sample gas out' message in digit field when gas exhaust connector is blocked

Ranked causes

1. Gas exhaust connector blocked or restricted (common)
2. Backpressure detection sensor malfunction (occasional)

First check

Block gas exhaust connector with finger

Test point: Gas exhaust connector outlet
Expected: Exhaust path blocked

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

Gas sampling line occlusion detected patient safety

Sampling line blocked; monitor displays 'Sample line blocked' message in digit field within 30 seconds of occlusion

Ranked causes

1. Sampling line tip blocked or kinked (common)
2. Occlusion detection sensor malfunction (occasional)

First check

Block sampling line tip with finger

Test point: Gas sampling line inlet
Expected: Line physically blocked

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

Incorrect system time when not network connected

System clock shows wrong date and time when monitor is not connected to network

Ranked causes

1. CPU battery empty (common)
2. Time not configured properly (common)

First check

Check system date and time

Test point: Monitor clock display
Expected: Correct date and time displayed

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

Keyboard not working or partially working

Keyboard keys unresponsive or only some keys work

Ranked causes

1. Keyboard cable loose or faulty (common)
2. Membrane keypad faulty (occasional)

First check

Check keyboard cable connection

Test point: Keyboard cable to LCD interface board
Expected: Cable fully seated and intact

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

MC network port authentication issue

Monitor cannot authenticate on IEEE 802.1X port-based authentication enabled port

Ranked causes

1. 802.1X authentication not enabled on monitor (common)
2. Incorrect authentication credentials (common)

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

NIBP air leakage

NIBP module exhibits air leakage or loss of pressure integrity

Ranked causes

1. Hose or cuff leaking (common)
2. Leakage inside the module (occasional)

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

No MC network traffic

Monitor not communicating on MC network; no traffic detected

Ranked causes

1. Incorrect network configuration (common)
2. MC network traffic overload (occasional)

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

No transducer connected or sensor faulty patient safety

Missing or non-functional pressure transducer detected on indicated channel

Ranked causes

1. Transducer not connected (common)
2. Sensor faulty (occasional)

First check

Verify transducer connection

Test point: transducer connector on indicated channel
Expected: Transducer physically connected

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

Sample flow rate out of specification

Measured gas sample flow rate does not meet 150 ± 25 ml/min specification; indicates pump or flow restriction issue

Ranked causes

1. Sample gas flow rate too low or high (common)
2. Sampling pump motor bearing wear or malfunction (occasional)

First check

Connect module and allow 5 minute warm-up

Test point: Module operation
Expected: Module powered and stabilized

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

Touchscreen inoperative

Touchscreen does not respond to touches or clicks

Ranked causes

1. Touchscreen cable loose (common)
2. Touchscreen sensor faulty (occasional)

First check

Check touchscreen cable connection

Test point: Touchscreen cable to LCD interface board
Expected: Cable fully seated and intact

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

Trim knob not working

Trim knob control is unresponsive

Ranked causes

1. Trim knob cable loose or faulty (common)
2. Trim knob defective (occasional)

First check

Check trim knob cable connection

Test point: Trim knob cable to LCD interface board
Expected: Cable fully seated and intact

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

Water trap disconnected or missing

Monitor displays 'Check Water Trap' message in digit field; water trap detached from sampling system

Ranked causes

1. Mini D-fend water trap disconnected or unseated (common)
2. Water trap detection sensor malfunction (occasional)

First check

Detach Mini D-fend water trap from module

Test point: Water trap gas connector
Expected: Water trap disconnected from module

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

Ambient pressure sensor reading error

Absolute pressure sensor reading differs from barometer by more than ± 10 mmHg; indicates sensor malfunction

Ranked causes

1. Pressure sensor calibration drift or failure (occasional)

First check

Access Gas service menu and note ambient pressure reading

Test point: Ambient pressure value in Gas service menu
Expected: Numeric pressure value displayed

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

Arrhythmia paused patient safety

ECG channels not available for analysis for 20+ seconds or internal HR not updated for 30+ seconds due to excessive artifact.

Ranked causes

1. Excessive artifact or poor electrode contact (common)

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

Artifact detected in ECG patient safety

Muscle artifact or high/low frequency noise detected in waveform.

Ranked causes

1. Poor electrode contact or lead placement, patient movement (common)

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

Battery empty

Monitor is battery powered with less than 5 minutes of monitoring time remaining.

Ranked causes

1. Battery charge depleted (common)

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

Battery low

Monitor is battery powered with less than 20 minutes of monitoring time remaining.

Ranked causes

1. Battery charge low (common)

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

Battery temperature high caution

Battery temperature is too high.

Ranked causes

1. Battery overheated (common)

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

Calibrate NIBP message displayed

NIBP calibration required. Message in digit field.

Ranked causes

1. NIBP calibration required (unknown)

Calibration: CPU battery replacement

Replacement of FRU B40B20 CPU battery at the recommended 5-year interval

Ranked causes

1. CPU battery maintenance interval reached (common)

First check

CPU battery age verification

Test point: Installation records
Expected: 5 years or more since last replacement

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

Calibration: Display brightness adjustment

Set display brightness level according to operational needs

Ranked causes

1. Display brightness requires adjustment (common)

First check

Verify display brightness adjustment is accessible

Test point: Menu > Brightness control
Expected: Brightness control present and functional

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

Calibration: E-COP module maintenance check high voltage

Preventive and corrective maintenance checklist for E-COP module including visual inspection and electrical safety validation

Ranked causes

1. Routine E-COP module maintenance procedure (common)

First check

Module front cover integrity

Test point: E-COP module front cover
Expected: Front cover is intact

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

Calibration: E-Entropy module maintenance check patient safety

Verify E-Entropy module functionality, sensor recognition, and electrical safety prior to clinical use

Ranked causes

1. Module or sensor malfunction requiring verification (unknown)

First check

Visual inspection of module front cover

Test point: Module front cover
Expected: Cover is intact

8 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Invasive blood pressure channel P4

Calibrate pressure transducer on P4 invasive blood pressure measurement channel

Ranked causes

1. P4 pressure channel calibration drift (unknown)

First check

Verify P4 calibration menu available

Test point: Service interface COP calibrations
Expected: Calibrate P4 option accessible

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

Calibration: Invasive blood pressure channels P1 and P2

Calibrate pressure transducers on invasive blood pressure measurement channels

Ranked causes

1. Pressure channel calibration drift (unknown)

First check

Verify P1/P2 calibration menu available

Test point: Service interface STP calibration
Expected: Calibrate P1/P2 option accessible

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

Calibration: NIBP pressure measurement patient safety

NIBP calibration procedure to verify or adjust non-invasive blood pressure measurement accuracy using a digital manometer and reference pressure source.

Ranked causes

1. NIBP measurement out of specification or calibration check failure (unknown)

First check

Connect adult NIBP hose to NIBP connector

Test point: NIBP connector
Expected: Secure connection established

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

Calibration: Post-FRU functional verification patient safety

Verification procedure after detaching, replacing or upgrading field replaceable units (FRU) in patient monitor to ensure proper installation and system functionality.

Ranked causes

1. FRU installation requires functional verification (common)

First check

Check all product labelling, marking and symbols

Test point: Device exterior
Expected: Intact and readable

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

Calibration: Post-maintenance verification patient safety

Visual inspection and functional checks required after detaching, replacing or upgrading FRU components or maintenance parts in the B125/B105 patient monitor

Ranked causes

1. FRU replacement or upgrade completed (common)

First check

Product labelling marking and symbols intact and readable

Test point: Monitor exterior
Expected: All labels present and legible

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

Calibration: Sample flow gain

Adjust sampling pump gain value for gas measurement accuracy

Ranked causes

1. Sample flow measurement drift (unknown)

First check

Verify sample flow gain adjustment available

Test point: Service interface Gas Control menu
Expected: Sample Flow Gain parameter accessible

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

Calibration: Sample flow rate adjustment caution

Sample flow rate must be adjusted if the sample flow rate check failed during checkout procedures.

Ranked causes

1. Sample flow rate check failed (unknown)

First check

Stop breathing to gas sampling line

Test point: Gas sampling line inlet
Expected: Apnea alarm appears in message field within 30 seconds

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

Calibration: Set national requirements

Activate France specific defaults for ECG heart rate adjustment range and reminder beep behavior

Ranked causes

1. National requirements configuration needed (occasional)

First check

Access Service menu with authentication

Test point: Service menu
Expected: Service menu accessible after entering credentials

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

Calibration: Set time zone

Configure time zone, daylight savings, time sync source and NTP settings on patient monitor when not connected to network and patient discharged

Ranked causes

1. Time zone configuration required (common)

First check

Verify monitor is not connected to network

Test point: Network connection status
Expected: Monitor not connected to network

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

Calibration: Slave display picture adjustment

Adjust picture quality on slave display using OSD menu

Ranked causes

1. Slave display picture requires adjustment (occasional)

First check

Slave display picture quality acceptable

Test point: Slave display screen
Expected: Picture quality clear and properly adjusted per display user manual

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

Calibration: Temperature channels T1 and T2

Calibrate invasive temperature sensor channels T1 and T2 for accurate measurements

Ranked causes

1. Temperature channel calibration drift (unknown)

First check

Verify T1/T2 calibration menu available

Test point: Service interface STP calibration
Expected: Calibrate T1/T2 option accessible

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

Calibration: Temperature measurement

Temperature channel self-calibration procedure

Ranked causes

1. Temperature calibration in progress (common)

First check

Monitor temperature self-check status

Test point: temperature channel (DF)
Expected: Self-check completes with no error messages

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

Calibration: Wired CARESCAPE Network configuration

Configure monitor network settings including unit name, bed name, and MCS IP address

Ranked causes

1. Monitor requires network configuration for first-time use or maintenance (common)

First check

Enter Unit Name in Network Config

Test point: Basic Service > Network menu
Expected: Unit Name field populated and saved

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

Cardiac output measurement not responding or reading incorrectly patient safety

C.O. manual measurement fails to start, displays error, or returns unexpected values; temperature readings (T injectate, T blood) not close to simulator set values

Ranked causes

1. Simulator temperature settings not matching configured values or measurement initialization issue (common)

First check

Verify monitor C.O. configuration

Test point: Cardiac output menu
Expected: Catheter Type: User defined, Computation Constant: 0.542, Measurement Type: Manual, Injectate Volume: 10 ml, Ref Measurement: Deselect

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

Check Device message displayed

Hemo module malfunction, Masimo type only. Message appears in digit field.

Ranked causes

1. Hemo module malfunction (unknown)

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

Check NIBP message displayed

Systolic and/or diastolic results missing during NIBP measurement. Message in message field.

Ranked causes

1. Missing NIBP measurement results (unknown)

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

Check Probe message displayed

No detectable SpO2 signal. Sensor is faulty or detached from patient. Message in digit or message field.

Ranked causes

1. Faulty or detached SpO2 sensor (common)

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

Check zero drift compensation NIBP

Monitor and assess zero drift compensation in NIBP pneumatics system

Ranked causes

1. NIBP zero drift exceeds ±10 mmHg limit (occasional)

First check

Display and review zero drift value

Test point: Service interface NIBP module Zero parameter
Expected: Zero drift value between +20 to -20 mmHg, ideally within ±10 mmHg

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

Condition battery

Battery is not working properly and requires conditioning.

Ranked causes

1. Battery requires conditioning or replacement (common)

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

COP module gain adjustment

Adjust gain coefficient to compensate for gain error in cardiac output measurement

Ranked causes

1. Gain value outside normal range 17000-25000 (occasional)

First check

Monitor gain coefficient value

Test point: Service interface COP module Gain parameter
Expected: Gain value between 17000 and 25000

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

COP module zero offset adjustment

Adjust zero offset compensation value for A/D converter in cardiac output measurement

Ranked causes

1. Zero offset value outside ±1000 range (occasional)

First check

Monitor zero offset compensation value

Test point: Service interface COP module Zero parameter
Expected: Zero offset within ±1000

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

More symptoms

Cuff loose message displayed
Cuff occlusion message displayed
Cuff overpressure message displayed
E-COP module test result documentation
ECG measurements removed
ECG module error
Faulty Probe message displayed
Frame has power issue
Frame temperature high
Gas sampling system leakage detected
Hemo parameters removed
IBP abnormally low pressure
IBP channel zeroed to over 100 mmHg
ICP channel must be zeroed separately
Identical IP address noticed
Identical SpO2 modules message displayed
Identical unit and bed name noticed
Incompatible NIBP message displayed
Incompatible Probe message displayed
Incorrect system time when network connected
Interference message displayed
Invasive pressure channel not zeroed
Invasive pressure measurement not zeroing or reading incorrectly
Lead off - LA/L, LL/F, RA/R, RL/N, or V/C
Leads off
License invalid
Loading failed
Long measurement time message displayed
Low Perfusion message displayed
Low signal quality message displayed
Maintenance: CPU battery replacement
Measurement off - impedance respiration
Memory ERROR
Mode data reset
Network down
Network down: HL7
Network storm causes temporary data loss
NIBP cuff loose message displayed
NIBP cuff occlusion message displayed
NIBP manual message displayed
NIBP measurement removed message displayed
No battery backup
No SpO2 probe message displayed
No SpO2 pulse message displayed
P1/P2/P4 over range message displayed
Parameter module cannot be placed in frame properly
Poor Signal message displayed
Probe Off message displayed
Pulse Search message displayed
Px/P2/P4 under range message displayed
Recorder cover open
Recorder input voltage high or low
Recorder out of paper
Recorder system error
Recorder thermal array overheat
Recorder works but no output on paper
Replace battery
Replacement of planned maintenance parts
Restart needed
Select cuff size message displayed
Small respiration curve
Software activation incomplete or unsuccessful
SpO2 faulty probe message displayed
SpO2 measurement removed message displayed
SpO2 module error message displayed
SpO2 probe off message displayed
Temperature error / T1 temperature error / T2 temperature error
Tubing contamination check
UMBC communication error
Unit does not display Condition battery or Battery failure message after startup
Unstable zero pressure message displayed
Weak pulsation message displayed
Zero valve not functioning

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

Error codes

Code	Meaning	Trigger	Severity
`Alarm setup changed from Central`	Alarm setup retrieved from central station or ECG alarms modified from Central	Connection to central station established or ECG alarm configuration changed remotely	info
`Alarms reset from Central`	Alarms were remotely paused from central station	Central station sends pause command	info
`Apnea deactivated`	Monitor recently admitted patient or measurement just started	Patient admission or measurement initiation	info
`Arrhythmia Paused`	ECG channels unavailable for analysis or HR not updated due to excessive artifact	Artifact present for 20+ seconds or HR not updated for 30+ seconds	warning
`Artifact`	Muscle artifact or high/low frequency noise in ECG signal	Artifact detected in waveform	warning
`Calibrated`	Channel calibrated successfully	Calibration procedure completed without errors	info
`Calibrating`	Calibration of a channel is in progress	User initiates calibration procedure	info
`Call service: Error 0`	RAM test failure	Detected during startup self-test	critical
`Call service: Error 1`	ROM checksum failure	Detected during startup self-test	critical
`Call service: Error 10`	RTK 400Hz timer re-entry	Detected in real-time kernel	critical
`Call service: Error 11`	RTK 50Hz timer re-entry	Detected in real-time kernel	critical
`Call service: Error 13`	RTK overrun	Detected in real-time kernel	critical
`Call service: Error 14`	Too early AUTO START according to module check	AUTO START command issued prematurely	error
`Call service: Error 15`	Calibration data invalid on initialization or unit never calibrated	Device startup when calibration data is invalid	error
`Call service: Error 16`	Communication timeout between main and safety CPU	Detected during operation when CPUs fail to communicate	critical
`Call service: Error 17`	Safety CPU report communication timeout	Detected when safety CPU detects communication loss	critical
`Call service: Error 18`	Wrong message rate in communication between main and safety CPU	Message rate deviates >±2% from 480 msg/s	error
`Call service: Error 2`	Pump on during idle or over current detected	Detected during normal operation	error
`Call service: Error 3`	Startup communication failure with safety CPU	Detected at device startup	critical
`Call service: Error 5`	Calibration Not Protected	Detected during calibration procedure	error
`Call service: Error 6`	Valve stuck closed during cuff typing	During NIBP cuff inflation	error
`Call service: Error 7`	Could not save calibration data	After calibration procedure	error
`Call service: Error 8`	Pressure exceeds limits while idle	PT2 >150 mmHg for >15 s while idle, or pressure >15 mmHg for >180 s (Adult) or >5 mmHg for >90 s (Neo)	error
`Call service: Error 9`	Determination time too long	NIBP measurement takes excessive time	error
`Call service UMBC error`	UMBC communication error and UMBC communication disabled	UMBC communication failure	error
`Default settings returned`	Monitor settings have been reset to default	Factory reset or settings recovery activated	info
`DEMO MODE`	DEMO mode has been enabled	DEMO mode activated	warning
`Entering standby`	Standby mode activation selected	Standby activation command issued	info
`Failed`	Pressure calibration failure due to time-out or waveform/gain issues	Calibration procedure does not complete within time limit or detects pulsation or gain out of range	error
`Failed: P<100`	Calibration reference value entered is less than 100 mmHg	User enters pressure reference below 100 mmHg	error
`InvBP's not zeroed`	At least one invasive pressure channel has not been zeroed	Attempt to measure with unzeroed IBP channel	warning
`Lead changed`	Monitor auto-switched ECG1 waveform to measurable ECG lead	Current ECG1 waveform not measurable	info
`Learning`	ST algorithm in learning phase	ST algorithm startup or ECG measurement start	info
`License invalid`	License is invalid during startup	Monitor startup with invalid license	error
`Loading failed`	Loading mode from network interrupted	Network data transfer interrupted	error
`Loading from network`	Patient data being loaded from the network	Data transfer from network initiated	info
`Memory ERROR`	Memory error after software download	Software download completion	error
`Mode data reset`	Error loading settings from flash file	Cold start, warm start, upgrade, or revert mode	error
`Network down`	CARESCAPE Network connection failed	Network connectivity loss	error
`Network down: HL7`	No HL7 TCP Client configured to connect to monitor	HL7 connection attempt with no client configured	error
`Network: HL7`	HL7 TCP Client application network connection established	HL7 connection established	info
`Network made`	CARESCAPE network connection established	Network connection successful	info
`No breath deactivated`	One of the electrodes is off	Electrode disconnection detected	warning
`No x transducer`	No transducer connected to indicated channel or sensor is faulty	Channel detects missing or non-responsive transducer	error
`Patient admitted`	Current patient has been admitted	Patient admission recorded	info
`Patient discharged`	Patient has been discharged	Patient discharge recorded	info
`Performing temp test`	Temperature is calibrating (self-check in progress)	Temperature channel self-calibration initiated	info
`Printing...`	Printing is occurring	Print operation initiated	info
`Printing Alarm`	Alarm has triggered printing	Alarm condition activates print	warning
`Recorder: cover open`	Recorder cover is open	Recorder cover opened	warning
`Recorder: input voltage high / Recorder: input voltage low`	Problems with recorder input voltage	Recorder voltage out of specification	error
`Recorder module removed`	Recorder module has been removed	Recorder module disconnected	info
`Recorder: out of paper`	Recorder out of paper or cover open	No paper detected or cover open	warning
`Recorder system error {0d}`	Local recorder not working	Recorder communication failure	error
`Recorder thermal array overheat`	Problems with recorder temperature	Recorder temperature exceeds limit during operation	warning
`Saving`	Printing device not available; records saved for later printing	Print request with no printer available	warning
`Saving to network`	Saving trend and information to Network	Network save operation initiated	info
`STP measurements removed`	Hemodynamic (Hemo) parameters have been removed	Hemo module disconnected or communication lost	warning
`Zero adj > 100 mmHg`	IBP channel zeroed to over 100 mmHg pressure	Zero adjustment value exceeds 100 mmHg limit	error
`Zeroed`	Zeroing was successful	Zeroing procedure completed without errors	info
`Zero ICP separately`	ICP channel must be zeroed separately from other invasive pressures	Attempt to zero ICP with other pressure channels	warning
`Zeroing`	IBP channel is currently being zeroed	User initiates zeroing procedure	info
`Zeroing failed`	Zeroing procedure failed due to pulsation, defective transducer, or excessive offset	Zeroing encounters pulsating waveform, detects defective transducer, or offset exceeds 150 mmHg	error

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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.