Patient monitors

Philips M3046: troubleshooting and error codes

The ServiceForge knowledge base holds 119 documented symptoms for the Philips M3046, with 221 ranked causes, 136 diagnostic checks with test points and expected values, and 155 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Monitor screen is blank patient safety

Display shows no image, completely dark

Ranked causes

1. Power not connected or not switched on (common)
2. Battery not installed, empty, or fuse blown (common)
3. AC fuse is blown (occasional)
4. Power supply defective (occasional)
5. System board is defective (occasional)
6. Poor connection to display (occasional)
7. Display backlight tubes worn (occasional)
8. Display defective (rare)

First check

Verify AC power connection and on/off switch

Test point: Power cord and power switch
Expected: Monitor plugged in, switched on, AC power lamp lit

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

No CO2 waveform displayed and no channel present patient safety

CO2 measurement channel absent and no waveform shown on display

Ranked causes

1. Measurement Extension used with Release A software (occasional)
2. CO2 hardware incompatible with wireless network (occasional)
3. No FilterLine attached (common)
4. CO2 measurement switched off (common)
5. Pump defective (occasional)
6. Incorrect or defective FilterLine (occasional)

First check

Verify FilterLine is connected

Test point: CO2 inlet connector
Expected: FilterLine attached and secure

2 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Check Input Device

Monitor detected prolonged constant user interface operation or user interface is faulty

Ranked causes

1. Key or TouchStrip pressed continuously (common)
2. Monitor Bezel mounting loose or damaged (occasional)
3. Monitor Bezel assembly cables faulty (occasional)
4. Defective Monitor Bezel (occasional)
5. System Board defect (rare)

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

Accuracy problems with CO2 measurement patient safety

CO2 values displayed are inaccurate or readings are outside acceptable range

Ranked causes

1. Incorrect N2O setting (common)
2. Incorrect humidity correction setting (BTPS/STPD) (common)
3. Incorrect Max Hold setting (occasional)
4. Invalid calibration (occasional)

First check

Verify N2O correction setting

Test point: CO2 configuration menu
Expected: N2O correction set correctly for installed gas mix

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

Battery LED does not illuminate or displays red

Battery LED remains off or shows red after battery insertion with AC power connected. Battery not charging or indicating low charge state.

Ranked causes

1. Battery not adequately charged (common)
2. Battery defective (common)
3. Battery LED defective on Monitor Bezel (occasional)
4. Battery control circuit defective on System Board (occasional)

First check

Test battery charge level

Test point: Battery charge indicator
Expected: At least one green LED illuminates when charge indicator pressed

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

BATTERY MALFUNCT.

Battery status cannot be determined. Battery is recognized but communication is not possible, possibly from deep discharge.

Ranked causes

1. Battery deep discharge from prolonged storage in Monitor (common)
2. Battery defective or unresponsive after deep discharge (occasional)
3. System Board defect (rare)
4. Connector Board defect (rare)

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

Battery Malfunction

Battery presence detected but communication with battery is not possible; may be due to deep discharge

Ranked causes

1. Battery deeply discharged (common)
2. Defective battery (occasional)
3. System Board defect (rare)
4. Connector Board defect (rare)

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

CO2 Calibration Failed (M3016A)

Calibration aborted due to power failure, unstable signal, or transducer on wrong calibration cell

Ranked causes

1. Power failure during calibration (common)
2. Unstable signal during calibration (occasional)
3. Transducer on wrong calibration cell (occasional)
4. Extension hardware defect (rare)

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

Measurement Server Unplugged

No Server is connected or communication with Server is not possible

Ranked causes

1. Server not connected to Monitor or Extension (common)
2. Server is defective (occasional)
3. Link bar or cable faulty (occasional)
4. System Board defect (rare)

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

No marker pulse displayed on monitor

Marker pulse does not appear on monitor display despite defibrillator and cable being functional

Ranked causes

1. ECG OUT signal not present from System Board (common)
2. System Board initialization fault (ECG OUT LED stuck on) (occasional)
3. Defib cable or connection problem (occasional)
4. Measurement Server defective (occasional)

First check

Disconnect Server and Defib cable from monitor

Test point: Defib and Server connectors
Expected: Cables disconnected

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

No tone alarms from monitor caution

Monitor produces no audible alarm sounds or alert tones

Ranked causes

1. Audible tones switched off (common)
2. Speaker cable disconnected (occasional)
3. Defective speaker (occasional)
4. Defective Audio Circuit on System Board (rare)

First check

Verify audible tones enabled in menu

Test point: Monitor audio settings menu
Expected: Audible tones setting shown as on/enabled

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

Numerics or waveforms not displayed

Some or all numeric values or waveform traces absent from monitor screen

Ranked causes

1. Parameters switched off (common)
2. No transducers connected (common)
3. Defective transducer (occasional)
4. Server defective (rare)

First check

Verify parameters are enabled

Test point: Monitor menu or Config
Expected: All required parameters shown as on/enabled

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

Server Link Malfunction high voltage

Current is too high or voltage is too low in Server link

Ranked causes

1. Server not connected to Monitor (common)
2. Defective Server (occasional)
3. Link bar or cable defect (occasional)
4. System Board defect (rare)

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

Some or all numerics or waves missing from screen

Display shows no measurements after software upgrade; numerics and waveforms absent.

Ranked causes

1. No Measurement Server connected (common)
2. No transducers connected (common)
3. Defective transducer (occasional)
4. Measurement Server defective (occasional)

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

Unit does not power on high voltage

AC Power LED or On-Off/Standby LED remains off after connecting AC power and switching instrument on.

Ranked causes

1. Monitor Bezel or display cables disconnected or improperly seated (common)
2. AC power supply failure or blown fuses on Power Supply board (common)
3. Monitor Bezel defective (occasional)
4. System Board defective (occasional)

First check

Verify AC Power LED status after AC power connection

Test point: AC Power LED
Expected: LED switches on within several seconds

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

Unit does not power on or respond

Power switch is off or unit has no power; check basic power status and connections before opening

Ranked causes

1. Power switch not turned on (common)
2. Battery not adequately charged (common)
3. AC power cord not connected or plugged into outlet (common)
4. Measurement Server not inserted correctly (occasional)

First check

Verify power switch is turned on

Test point: Power switch
Expected: Switch in ON position

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

AC Power LED remains off

No green indicator when AC power cord is connected to mains outlet

Ranked causes

1. Power Supply defective (common)
2. Monitor Bezel cable connection loose (occasional)
3. System Board defective (occasional)

First check

Verify AC power at outlet and cord connection

Test point: AC outlet and power cord plug
Expected: AC mains voltage present, cord fully seated

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

Alarm LED and Suspend LED not switching as expected during boot

After Monitor boots until display switches on, Alarm LED and Suspend LED do not cycle through red, red/yellow then off

Ranked causes

1. Monitor Bezel cable not seated (common)
2. Monitor Bezel defective (occasional)
3. System Board defective (occasional)

First check

Verify Monitor Bezel cable is seated correctly

Test point: Monitor Bezel cable connector
Expected: Cable seated securely

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

CO2 Occlusion (M3015A)

FilterLine or exhaust tube blocked, or outlet occluded at power on; also appears after Pump Op Time reset

Ranked causes

1. FilterLine or exhaust tube blocked (common)
2. Outlet occluded at power on (occasional)
3. Pump Op Time reset without flow check (occasional)

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

Disassembly precautions and limitations high voltage

General warnings about instrument disassembly, mains power hazards, and capacitor discharge

Ranked causes

1. Risk of electrical injury from mains voltage and stored capacitor energy (common)
2. Risk of battery fuse failure from incorrect assembly (occasional)
3. Risk of equipment damage from incorrect power connection (occasional)

First check

Verify power disconnected before disassembly

Test point: mains power cord
Expected: power cord disconnected from wall outlet

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

Display remains dark during boot

System Board LEDs indicate successful boot completion (green on, red off, yellow blinking 1/sec) but display shows no video or backlight

Ranked causes

1. Display cable not seated correctly (common)
2. Video flex layer not snapped correctly onto Display Adapter Board connectors (common)
3. TFT panel connector contact issue (occasional)

First check

Verify display cable seated correctly

Test point: Display cable connector
Expected: Cable fully inserted and secure

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

Infrared lamp intensity reduced in M3015A CO2 module caution

Sidestream CO2 infrared lamp in M3015A shows decreased light intensity output

Ranked causes

1. Infrared lamp aged beyond 20000 operating hours (common)
2. Increased noise on CO2 wave after lamp wear (occasional)
3. Instrument fails accuracy test after calibration (occasional)

First check

Check cumulative infrared lamp operating time

Test point: Service Mode > Hardware Test > InfraredLampOpTime
Expected: Less than 15000 to 20000 hours for full intensity

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

Lack of user control of display

Monitor does not respond to control inputs; user cannot interact with display or adjust settings

Ranked causes

1. Cable from System Board to Monitor Bezel not connected properly (common)
2. Defective TouchStrip (occasional)
3. Defective System Board (rare)

First check

Verify cable connection from System Board to Monitor Bezel

Test point: Cable connector at System Board and Monitor Bezel
Expected: Cable fully seated on both ends

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

Monitor does not power on

Power switch turned on but no response, LEDs off, no display illumination

Ranked causes

1. Power switch not turned on (common)
2. AC power cord not connected (common)
3. Battery not adequately charged (occasional)

First check

Verify power switch position

Test point: On-Off/Standby switch
Expected: Switch in ON position

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

No printout produced

Print command is issued but no output appears at the printer

Ranked causes

1. Infrared printer JetEye not connected or positioned incorrectly (common)
2. Network printer not connected to M3 Print Server (occasional)
3. Network printer switched off (common)

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

Printing is not possible

Monitor cannot send data to printer or print fails

Ranked causes

1. Defective printer (common)
2. Infrared connection misaligned or defective sender (occasional)
3. Cable defect or System Board issue (occasional)

First check

Test print function from different monitor

Test point: Printer interface
Expected: Printer accepts and executes print command from known-good monitor

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

Pump effectiveness reduced in M3015A CO2 module caution

Sidestream CO2 pump in M3015A Measurement Server Extension shows decreased effectiveness

Ranked causes

1. Pump aged beyond 20000 operating hours (common)
2. Pump cannot achieve desired flow rate (occasional)
3. Pump makes excessive noise (occasional)

First check

Check cumulative pump operating time

Test point: Service Mode > Hardware Test > PumpOpTime
Expected: Less than 15000 to 20000 hours for full effectiveness

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

Speaker Malfunction

Defective speaker or cable connections

Ranked causes

1. Cable connection loose or damaged (common)
2. Defective speaker (occasional)
3. System Board defect (rare)

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

Verify LED indicators before opening instrument

Observe LED status to isolate problems without opening unit: check AC Power LED and Battery LED colors

Ranked causes

1. AC Power LED off or red (with AC connected) (occasional)
2. Battery LED red and blinking (with battery) (occasional)
3. Battery LED yellow (with AC and battery) (common)

First check

Observe AC Power LED status with AC connected, no battery

Test point: AC Power LED
Expected: LED on and green

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

Wireless network connectivity issue

Unable to verify antenna functionality or wireless signal strength on M3046A patient monitor

Ranked causes

1. Antenna malfunction (unknown)
2. Wireless configuration mismatch (unknown)
3. Site Survey Tool not running (unknown)

First check

Verify antenna connectivity with Site Survey Tool

Test point: Wireless antenna
Expected: RSSI measurement displayed, antenna in order
Tools: Connectronics RangeLAN2/PCMCIA Site Survey Tool (part 82-6332 7402-05)

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

All patient data lost or corrupted patient safety

Patient records or stored data missing or damaged, indicated in error log

Ranked causes

1. Defective System Board (common)
2. Defective connector board or data buffer (occasional)

First check

Run extended test in Service Mode

Test point: Service Mode diagnostics
Expected: Extended test completes successfully

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

Bad Server Link

Monitor cannot communicate with Measurement Server due to incompatible software revisions or faulty link bar/cable

Ranked causes

1. M3000A Server revision B with M3046A Monitor revision A (common)
2. Incompatible link bar, cable, Server or Extension (common)

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

Battery LED red and blinking

Red blinking LED indicates battery malfunction or empty battery

Ranked causes

1. Battery empty or depleted (common)
2. Battery malfunction (occasional)

First check

Observe Battery LED color and pattern

Test point: Battery LED on front panel
Expected: Green (fully charged), yellow (charging) or red blinking (empty/fault)

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

Buzzing noise in monitor caution

Audible buzzing sound emanating from monitor unit

Ranked causes

1. Defective Audio Circuit on System Board (common)
2. Defective Power Supply (occasional)

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

CHARGER MALFUNCT.

Battery charging hardware or battery itself is defective, preventing normal charging operation.

Ranked causes

1. Battery defective (common)
2. Charging hardware defect in System Board (occasional)

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

Charger Malfunction

Battery or internal charging hardware is defective

Ranked causes

1. Defective battery (common)
2. System Board charging hardware defect (occasional)

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

CO2 No Transducer (M3016A)

M1460A Transducer not connected; silencing switches parameter off

Ranked causes

1. Transducer disconnected (common)
2. Defective transducer (occasional)

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

Coldstart test failure with CHECK STATUS LOG INOP

Coldstart reboot test reports CHECK STATUS LOG INOP message indicating fatal error

Ranked causes

1. System Board fatal error (occasional)
2. Server fatal error (occasional)

First check

Execute coldstart test in Service Mode

Test point: Hardware Test > Coldstart
Expected: No CHECK STATUS LOG INOP displayed after reboot; whole reboot takes about 10 seconds

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

Display remains dark after backlight checks

Video display stays dark despite backlight tubes functioning and cables seated correctly

Ranked causes

1. Display Assembly defective (common)
2. System Board defective (occasional)

First check

Verify video flex layer is snapped on correctly

Test point: Video flex layer
Expected: Snapped on correctly without damage

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

Monitor screen appears dim

Display brightness is lower than normal

Ranked causes

1. Brightness not properly adjusted (common)
2. Display backlight tubes worn (occasional)

First check

Check brightness control setting

Test point: Display brightness menu
Expected: Brightness setting set to full or acceptable level

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

No marker pulse on screen patient safety

ECG or pacing marker pulse signal absent from waveform display

Ranked causes

1. ECG Analog Output defective (common)
2. Defib sync input circuit defective or out of sync (occasional)

First check

Verify ECG signal present on display

Test point: ECG waveform display
Expected: ECG trace visible with marker pulses at appropriate intervals

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

No response when touching or pressing TouchStrip or panel keys

Monitor does not respond to user input via TouchStrip or front panel keys

Ranked causes

1. Poor connection between TouchStrip and System Board (common)
2. Defective System Board (occasional)

First check

Test TouchStrip response

Test point: TouchStrip control
Expected: Monitor responds to touch input; cursor or menu changes

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

No sound from monitor caution

Monitor produces no audible tones or alarms

Ranked causes

1. Tone switched low or off (common)
2. Speaker cable disconnected or defective speaker (occasional)

First check

Listen for tone during boot-up

Test point: Speaker audio output
Expected: Audible tone or beep when monitor powers on

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

Printout not reaching network printer silently

Print job sent without error message but output does not appear at network printer

Ranked causes

1. Network printer switched off or in error condition (common)
2. M3 Print Server system issue (occasional)

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

Red ECG LED is on patient safety

Red ECG indicator LED illuminated on System Board

Ranked causes

1. System Board defective (occasional)
2. Defib sync not synchronized with ECG (occasional)

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

Remote printer not available message appears

Error message 'REMOTE PRINTER NOT AVAILABLE' displayed on monitor screen

Ranked causes

1. Monitor not connected to M3 Print Server network (common)
2. Network issue with M3 Print Server (occasional)

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

SpO2 values unstable or unreliable patient safety

Blood oxygen saturation readings fluctuate or show unreliable values

Ranked causes

1. Low light transmission of SpO2 sensor LEDs (common)
2. Patient has low peripheral perfusion (occasional)

First check

Measure SpO2 transmission and perfusion index

Test point: SpO2 sensor on patient finger
Expected: Perfusion Index > 1.0; Transmission red > 10; Transmission infrared > 10 dimensionless, > 1.0

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

System Board Green LED off

No green indicator on System Board indicating +5V power issue

Ranked causes

1. Power Supply defective or not supplying +5V (common)
2. Power Supply cabling loose or disconnected (occasional)

First check

Observe System Board Green LED state

Test point: System Board Green LED (viewed from rear panel after Server removal)
Expected: Green LED continuously on

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

System Board Yellow LED hung on or off

CPU status LED permanently on or permanently off, indicating CPU malfunction

Ranked causes

1. CPU hung or not executing (rare)
2. System Board defective (rare)

First check

Observe System Board Yellow LED blinking pattern

Test point: System Board Yellow LED
Expected: Blinking 2 times per second after red LED off, then 1 time per second after boot complete (~2 sec)

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

Backlight brightness reduced caution

Backlight tubes exhibit reduced brightness output during operation

Ranked causes

1. Backlight tubes aged beyond 25000 hours (common)

First check

Check cumulative backlight operating time

Test point: Service Mode > Hardware Test > BackLightOpTime
Expected: Less than 25000 hours for full brightness

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

Bad Server Link with Measurement Server Revision not supported

Red status message indicating M3000A Server revision A connected to M3046A Monitor revision B

Ranked causes

1. Server revision A with Monitor revision B incompatibility (common)

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

BAD SERVER LINK with Measurement Server Revision not supported message

Monitor displays 'Measurement Server Revision not supported' status message in red along with BAD SERVER LINK message.

Ranked causes

1. M3000A Measurement Server revision A with M3046A Monitor revision B (unknown)

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

Barometric pressure check

Verify barometric pressure measurement is within tolerance of reference pressure.

Ranked causes

1. Routine barometric pressure verification during calibration (common)

First check

Measure ambient pressure difference

Test point: M3046A display
Expected: X1 < 12 mmHg, < 12

Battery display shows empty bar

Inner bar in battery gauge appears gray, indicating no charge

Ranked causes

1. Battery depleted (common)

First check

Verify temperature conditions for charging

Test point: Ambient environment
Expected: 0 to 35°C

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

Battery gauge shows Condit. Battery text

Text string 'Condit. Battery' displayed in battery gauge

Ranked causes

1. Battery requires conditioning (occasional)

First check

Battery conditioning indicator present

Test point: Battery gauge display
Expected: Condit. Battery text displayed

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

Battery gauge shows Malfunction text on black background patient safety

Text string 'Malfunction' displayed in battery gauge with black background and severe INOP alarm issued

Ranked causes

1. Battery hardware malfunction (rare)

First check

Monitor can access battery

Test point: Battery gauge display
Expected: No Malfunction text, normal charge bar displayed

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

Battery Low

Battery charge remaining is less than 20 minutes

Ranked causes

1. Battery charge depleted (common)

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

Battery removal procedure high voltage

Steps to safely remove battery from M3046A patient monitor

Ranked causes

1. Battery needs removal for maintenance or replacement (unknown)

First check

Slide battery compartment door toward rear of monitor

Test point: battery compartment door
Expected: door opens downward

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

Battery symbol not displayed

Battery status indicator not shown on monitor display

Ranked causes

1. Battery not present, defective, or poor connection (common)

First check

Verify battery installation and charge status

Test point: Battery compartment
Expected: Battery present and fully inserted; charge-level indicator shows adequate charge when button pressed

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

Buzzing noise with alarm, INOP, or QRS sound caution

Audible buzzing accompanies monitor alarms, INOP alerts, or QRS tone

Ranked causes

1. Speaker mounting problem or speaker misaligned (common)

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

More symptoms

Calibration: CO2 Extension time counters and performance verification
Calibration: ECG and respiration performance
Calibration: ECG sync performance test
Calibration: Invasive Pressure Performance
Calibration: Temperature accuracy
Cannot reprogram time and date correctly
CHECK CAL INOP - Invalid calibration
CO2 AutoZero In Progress
CO2 Calibration Mode Set (M3016A)
CO2 Calibration Running (M3016A)
CO2 Change Scale
CO2 Check Calibration (M3016A)
CO2 Equipment Malfunction (M3015A/M3016A)
CO2 No Tubing (M3015A)
CO2 OCCLUSION INOP after pump replacement
CO2 Overrange (M3015A)
CO2 Purging Line
CO2 Sensor Warm Up
CO2 Update Firmware (M3015A)
CO2 Wait Calibration 2 (M3016A)
Decrease in light intensity on display
Display Adapter Board LED does not light after reset
Display test failure with SGRAM video memory defect
Display waveforms noisy or not showing smooth QRS
Error codes displayed during boot-up
Flow check
Fluid dripping or appearing below instrument
Incorrect time stamps on records
Initial boot phase not completing
Leakage check parts 1 and 2
Message: 'Assigned Central is not available'
Message: 'Central can not identify this bed'
Message: 'Measurement Server Configuration not supported'
Message: 'New display detected, please enter new display specs'
Message: 'No Central - duplicate monitor label'
Message: 'No Central - software incompatible'
Message: 'No Central assigned to this bed'
Message: 'Some measurements are not supported by the Monitor'
Monitor screen blank but instrument boots normally
Monitor screen dim
No Central Monitoring
No CO2 waveform but channel is present
No ECG data or waveform when defib sync and balloon pump used together
No ECG OUT signal to defibrillator
No waveforms displayed
Noise check
Nurse Call Relay test
Power Supply removal procedure
Print softkeys not found or inactive
Printout missing data or low resolution
Printout too large for page
Pump check
Pump refitting procedure
Replace battery
Site Survey RSSI signal strength below 80%
System Board Red Error LED permanently on
TouchStrip discolored, cracked, or deformed
Unsupported LAN Device Connected
Wireless Assembly LEDs indicate abnormal status

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

Error codes

Code	Meaning	Trigger	Severity
`16400-100`	Software condition		critical
`16400-118`	Hardware failure, replace server		critical
`16400-133`	Hardware failure, replace server		critical
`16400-2130`	Software condition		info
`16400-2131`	Software condition		info
`16400-2132`	Software condition		info
`16400-2133`	Software condition		info
`16400-562`	Software condition		critical
`16400-591`	Hardware failure, replace server		critical
`16400-592`	Hardware failure, replace server		critical
`16400-610`	Software condition		critical
`16400-941`	Software condition		critical
`16510-20337`	Software condition		info
`17203-20058`	Software condition		critical
`17203-20102`	Hardware failure, replace server		critical
`17203-20601`	Software condition		info
`17203-20667`	Software condition		info
`17203-20705`	Software condition		info
`17205-20005`	Software condition		info
`17205-20009`	Software condition		info
`17205-20012`	Software condition		info
`17205-20014`	Software condition		info
`17205-20050`	Software condition		info
`17205-20058`	Software condition		info
`17205-20065`	Software condition		critical
`17205-20102`	Software condition		critical
`17205-20500`	Software condition		info
`17205-20505`	Software condition		info
`17205-20553`	Software condition		info
`17205-20601`	Software condition		info
`17205-20604`	Software condition		info
`17205-20650`	Software condition		info
`17205-20664`	Software condition		info
`17205-20666`	Software condition		critical
`17206-20010`	Software condition		info
`17206-20015`	Hardware failure, replace server		critical
`17215-21480`	Software condition		info
`17215-21580`	Software condition		info
`17215-22002`	Software condition		critical
`17215-22060`	Software condition		critical
`17216-20050`	Software condition		info
`17250-20005`	Hardware failure, replace system board		critical
`17250-20502`	Software condition		info
`17250-20525`	Software condition		info
`17250-20642`	Software condition		info
`17300-20001`	Software condition		info
`17300-20002`	Software condition		critical
`17300-20046`	Software condition		info
`17300-20047`	Software condition		info
`17300-20088`	Software condition		info
`17300-20096`	Software condition		critical
`17300-2009x`	Software condition		critical
`17300-20101`	Software condition		info
`17300-20106`	Software condition		info
`17300-20107`	Software failure, upgrade to revision B		critical
`17300-20121`	Software condition		info
`17300-20134`	Software condition		info
`17300-20139`	Software condition		info
`17300-20302`	Software condition		info
`17300-20307`	Results from upgrade to another monitor option		info
`17303-20000`	Software condition		info
`17303-20006`	Software condition		info
`17303-20210`	Software condition		critical
`17303-20703`	Software condition		info
`17303-20707`	Can occur during upgrades		critical
`17303-20803`	Software condition		info
`17303-20810`	Software condition		info
`17303-21104`	Software condition		info
`17305-20008`	Software condition		critical
`17305-20058`	Software condition		critical
`17305-30056`	Software condition		critical
`17315-20010`	Software condition		info
`17315-20014`	Software condition		info
`17315-20016`	Software condition		info
`17315-20080`	Software condition		info
`17315-22042`	Software condition		info
`17315-22043`	Software condition		info
`17316-12000`	Software condition		info
`17316-12100`	Software condition		info
`17316-20004`	Software condition		info
`17316-20010`	Software condition		info
`17316-20011`	Software condition		info
`17316-20015`	Software condition		info
`17317-22073`	Software condition		info
`20002`	Error code occurring during or after software upgrade	Software upgrade process	info
`20102`	Error code occurring during or after software upgrade	Software upgrade process	info
`20210`	Error code occurring during or after software upgrade	Software upgrade process	info
`20307`	Error code occurring during or after software upgrade	Software upgrade process	info
`32674-20010`	Software condition		info
`32749-20002`	Measurement extension has been exchanged		critical
`32750-21224`	Software condition		critical
`32750-21400`	Software condition		critical
`32753-22450`	Software condition		info
`32753-24584`	Software condition		info
`32753-24592`	Software condition		info
`32753-28672`	Hardware failure, replace server		critical
`32764-20007`	Software condition		info
`32764-20009`	Software condition		info
`32765-20514`	Software condition		info
`32765-20702`	Software condition		info
`32765-20709`	Software condition		info
`32765-20713`	Software condition		info
`32765-20714`	Software condition		info
`32765-20715`	Software condition		info
`32767-20002`	Software condition		info
`BAD SERVER LINK`	Monitor cannot establish communication with Measurement Server due to incompatible software revisions or non-standard equipment	Incompatible server revision connected to monitor or non-standard link bar/cable/extension used	error
`BAD SERVER LINK`	Monitor cannot communicate with Measurement Server	M3000A Server revision B with M3046A Monitor revision A, or incompatible link bar/cable	error
`BAD SERVER LINK + Measurement Server Revision not supported`	Monitor cannot establish communication with Measurement Server due to incompatible server revision	M3000A Server revision A connected to M3046A Monitor revision B	error
`BAD SERVER LINK plus Measurement Server Revision not support`	Incompatible measurement server and monitor software revision combination	M3000A Measurement Server (revision A) connected to M3046A Monitor (revision B)	error
`BAD SERVER LINK with Measurement Server Revision not support`	Monitor revision does not support Server revision; red status message	M3000A Server revision A with M3046A Monitor revision B	error
`BATTERY LOW`	Hard INOP indicating remaining battery-operating time less than 20 minutes	Battery charge depleted to critical level	warning
`BATTERY LOW`	Battery charge is critically low	Battery charge falls below 20 minutes remaining	warning
`Battery Low`	Battery has approximately 20 minutes remaining	Battery charge drops below critical threshold	warning
`BATTERY MALFUNCT.`	Battery status cannot be determined; communication with battery is not possible	Battery present but unresponsive to status queries	error
`BATTERY MALFUNCTION`	Severe INOP indicating hardware or battery malfunction; switches alarms-suspended back on; generates recurring INOP alarm	Battery hardware failure or communication error	critical
`CHARGER MALFUNCT.`	Battery charging hardware or battery itself is defective	Monitor detects charging hardware or battery failure during charging operation	error
`CHECK INPUT DEVICE`	User interface malfunction detected	5+ minutes of continuous user interface operation or user interface fault	warning
`Check Status Log`	Non-critical problem detected in the Monitor	Defect condition detected during operation	warning
`CO2 AUTOZERO`	AutoZero calibration cycle in progress	Scheduled AutoZero at 5 min, 1 hour, 12 hours, and every 12 hours after FilterLine connection	info
`CO2 CAL FAILED`	CO2 calibration procedure aborted	Power loss, unstable signal, or transducer misalignment during calibration	error
`CO2 CAL MODE`	Calibration mode is set but not initiated	Cal mode enabled without starting calibration	info
`CO2 CAL RUNNING`	CO2 calibration procedure in progress	Calibration cycle active	info
`CO2 CHANGE SCALE`	ETCO2 waveform amplitude exceeds display channel scale	ETCO2 waveform larger than current display scale	warning
`CO2 CHECK CAL`	CO2 measurement value out of calibration limits	CO2 value less than -4 mmHg or greater than 150 mmHg	warning
`CO2 EQUIP MALF`	CO2 hardware or M1460A transducer hardware malfunction	CO2 or transducer hardware failure detected	error
`CO2 EQUIP MALF`	Carbon dioxide measurement defective	CO2 measurement server malfunction detected	error
`CO2 NO TRANSDUCER`	M1460A transducer not connected (M3016A)	Transducer absence detected at startup or runtime	warning
`CO2 NO TUBING`	FilterLine disconnected or incorrect line attached (M3015A)	FilterLine absence or incompatible line detected	warning
`CO2 OCCLUSION`	Generated after pump operation time is reset following pump refitting	PumpOpTime reset to zero in Service Mode (CO2 Setup) after pump replacement	info
`CO2 OCCLUSION`	FilterLine or exhaust tube blocked or outlet occluded (M3015A)	Occlusion detected in sample line or outlet; also after Pump Op Time reset	error
`CO2 OCCLUSION`	Occlusion detected in CO2 sample line	Generated after PumpOpTime counter is reset	info
`CO2 OVERRANGE`	CO2 measurement value outside valid measurement range	Measured CO2 value exceeds instrument range limits	warning
`CO2 PURGING`	Measurement Extension purging FilterLine due to detected occlusion	Occlusion detected in FilterLine or airway adapter	warning
`CO2 SENSOR WARM UP`	CO2 sensor has not reached operating temperature	Sensor temperature below operating minimum at startup	info
`CO2 UPDATE FW`	Software mismatch between CO2 Extension and Server (M3015A)	Extension firmware version does not match Server firmware version	error
`CO2 WAIT CAL 2`	CAL 2 calibration cycle must be started (M3016A)	CAL 1 calibration cycle completed	info
`ECG EQUIP MALF`	ECG measurement defective	ECG measurement server malfunction detected	error
`Malfunction alarm (INOP)`	Monitor cannot access battery due to battery or hardware malfunction	Battery or hardware malfunction condition detected	critical
`MEAS SERV UNPLUGGED`	Measurement Server not connected or communication lost	No Server connection or communication failure	error
`NBP EQUIP MALF`	Non-invasive blood pressure measurement defective	NBP measurement server malfunction detected	error
`NO CENTRAL MONITORING`	Central monitoring connection interrupted	Loss of communication with central monitoring network	warning
`Occlusion INOP`	Occlusion condition detected in CO2 measurement extension	FilterLine inlet blocked for longer than 25 seconds during leakage testing	warning
`PRESS EQUIP MALF`	Pressure measurement defective	Pressure measurement server malfunction detected	error
`Pressure Zero & Check Cal`	Pressure measurement zeroing or calibration required	Pressure measurement out of calibration	warning
`Red Error LED`	LED indicates system error condition	System Board reset (LED on for ~1 second) or system error detected	error
`REPLACE BATTERY`	Hard INOP indicating guaranteed operating time of 5 minutes only; derived from battery voltage	Battery voltage indicates imminent failure	error
`REPLACE BATTERY`	Battery charge critically low	Battery nearly empty	warning
`RESP EQUIP MALF`	Respiration measurement defective	Respiration measurement server malfunction detected	error
`SERVERLINK MALF`	Power supply error in Server link; current too high or voltage too low	High current or low voltage detected in Server link	error
`Service Operation Failed`	Service procedure cannot start while Monitor is performing AutoZero, purging or other operations	Attempt to start service procedure while Monitor has active operation running	warning
`SPEAKER MALFUNCTION`	Speaker or speaker cable defect	Speaker or cable failure detected	warning
`SpO2 EQUIP MALF`	Oxygen saturation measurement defective	SpO2 measurement server malfunction detected	error
`TEMP EQUIP MALF`	Temperature measurement defective	Temperature measurement server malfunction detected	error
`UNSUPPORTED LAN`	Unsupported device connected to LAN port	Non-standard device detected on LAN port	warning
`Yellow Main CPU status LED`	LED indicates CPU status: blinking = normal operation, permanently on or off = hung CPU	System powers on and CPU begins operation	warning

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

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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.