Patient monitors · IntelliVue family

Philips IntelliVue MP90: troubleshooting and error codes

The ServiceForge knowledge base holds 128 documented symptoms for the Philips IntelliVue MP90, with 314 ranked causes, 233 diagnostic checks with test points and expected values, and 26 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Pneumatic system shows problem caution

Module diagnostic reports pneumatic system failure; pump weak, occlusion detected, or system leakage indicated

Ranked causes

1. Weak pump (common)
2. Occluded pneumatics (common)
3. Defective cables (occasional)
4. Solenoid or air reference filter problem (occasional)
5. Flowrate problem (occasional)
6. Flow transducer incorrectly connected to flow restrictor (rare)
7. Pump problem (occasional)
8. Defective power supply (rare)
9. Defective main PC board (rare)

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

AC LED does not light up caution

The AC power indicator LED fails to illuminate when AC mains are connected

Ranked causes

1. AC connection not OK (common)
2. LED defective (occasional)
3. Power Switch board not connected (occasional)
4. Power supply defective (occasional)
5. Secondary main board defective (rare)
6. Primary Video Board defective (rare)
7. Backplane Bottom defective (rare)
8. Primary Main Board defective (rare)

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

Green Power On LED and Red Error LED remain off caution

Both power and error LEDs fail to illuminate after pressing power button on power supply

Ranked causes

1. Remote devices connected (common)
2. Power Switch Micro Controller hung (common)
3. Power switch board not connected (occasional)
4. Power Switch Board defective (occasional)
5. I/O Board defective (rare)
6. Primary Video Board defective (rare)
7. Primary Main Board defective (rare)

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

Operating temperature shows problem caution

Module diagnostic reports excessive operating temperature; fan failure, insufficient airflow, or environmental conditions exceeded

Ranked causes

1. Defective fan (common)
2. Insufficient air circulation due to fan working inefficiently (common)
3. Operating environment for module falls outside of specified limits (occasional)
4. Defective IR measurement assembly head (rare)
5. Defective agent ID head (rare)
6. Defective power supply (rare)
7. Defective main PC board (rare)

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

Span calibration failed patient safety

Gas span calibration check failed for one or more gas channels

Ranked causes

1. Zero calibration failed for indicated channel (common)
2. Incorrect agent selection or calibration values (common)
3. Flow rate problem (occasional)
4. Leakage problem (occasional)
5. Wrong calibration gas applied (occasional)
6. Empty calibration reservoir or gas canister (occasional)
7. Measurement assembly problem (occasional)

First check

Verify zero calibration passed

Test point: Gas Analyzer Calibration window
Expected: Zero calibration shows Passed for affected channel

3 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Zero calibration failed patient safety

AGM zero calibration check failed during startup or maintenance

Ranked causes

1. Solenoid or air reference filter problem (common)
2. Occluded pneumatics (common)
3. Flow rate problem (occasional)
4. Flow transducer incorrectly connected (occasional)
5. Pump problem (occasional)
6. IR measurement head problem (occasional)
7. Agent-ID problem (occasional)

First check

Verify air filter and solenoid function

Test point: Room air filter inlet during zero calibration
Expected: Air being pulled in at room air filter

4 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Alarm occurs but no LED lights up

Alarm triggered but alarm LED does not illuminate

Ranked causes

1. Environmental Lighting too bright (common)
2. Remote Alarm Device not connected (common)
3. Remote Alarm Device defective (occasional)
4. Remote I/O board in wrong slot (occasional)
5. Remote I/O board defective (occasional)
6. Main Board defective (rare)

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

External device not receiving data

Data export from monitor to external device fails or produces no output

Ranked causes

1. MIB/RS232 port not configured for data export (common)
2. Wrong data export protocol driver configured (occasional)
3. Cable between device and monitor not connected or defective (common)
4. External device does not support data export protocol version (occasional)
5. Terminal concentrator does not support dynamic speed negotiation (rare)
6. MIB/RS232 board in wrong slot or defective (rare)

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

O2 assembly shows problem caution

Module diagnostic reports O2 sensor assembly failure; jumpers incorrect, calibration failed, or sensor defective

Ranked causes

1. O2 jumpers incorrectly set (common)
2. O2 sensor failed zero/span calibration (common)
3. Defective O2 sensor (occasional)
4. Defective cables (occasional)
5. Defective power supply (rare)
6. Defective main PC board (rare)

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

Red Error LED stays on continuously caution

The red error indicator LED illuminates and remains on without going off

Ranked causes

1. External connected device defective (common)
2. I/O Board defective (occasional)
3. Backplane top or secondary main board defective (occasional)
4. Primary Video Board defective (rare)
5. Backplane Bottom defective (rare)
6. Primary Main board defective (rare)

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

SpeedPoint attached to Remote Extension Device not functioning

SpeedPoint input control attached to remote extension device does not work

Ranked causes

1. Remote Extension Device not connected to monitor (common)
2. SpeedPoint not connected properly (common)
3. SpeedPoint defective (occasional)
4. Remote Extension Device defective (occasional)
5. Remote Device I/O board in wrong slot (occasional)
6. Remote Device I/O board defective (occasional)

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

Agent ID assembly shows problem caution

Module diagnostic reports Agent ID assembly failure; software revision wrong, agent ID head defective, or power issue

Ranked causes

1. Wrong Agent-ID software revision (common)
2. Defective agent ID head (occasional)
3. Defective power supply (rare)
4. Defective cables (occasional)
5. Defective main PC board (rare)

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

Agent identification missing patient safety

Anesthetic agent is not being identified or measured by AGM

Ranked causes

1. Sample line not connected (common)
2. Agent not being administered (occasional)
3. Agent-ID configuration incorrect (occasional)
4. Agent-ID cable connection issue (occasional)
5. Agent-ID assembly failure (rare)

First check

Verify sample line connected

Test point: Sample line connection
Expected: Sample line connected between circuit and AGM

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

Communication problem from beginning

LED is steadily on; monitor and AGM cannot establish communication at startup

Ranked causes

1. Anesthesia software bundle not installed (common)
2. Incorrect RS232 configuration or MIB port settings (common)
3. Physical cable connection problem (occasional)
4. Monitor hardware failure (rare)
5. AGM motherboard failure (rare)

First check

Verify Anesthesia software bundle installed

Test point: Monitor software list
Expected: Anesthesia SW bundle #H30 present in Standby mode menu

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

External display is blank

Monitor external video output not visible on connected display

Ranked causes

1. Video cable to external display not connected (common)
2. External display has no power (common)
3. External display is defective (occasional)
4. Video board defective (occasional)
5. Main board defective (rare)

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

External touch display not functioning

Touch screen input on external touch display does not respond to touch input

Ranked causes

1. External Touch cable not connected (common)
2. External Touch driver configuration incorrect (common)
3. MIB Board defective (occasional)
4. External touch defective (occasional)
5. Main board defective (rare)

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

INOP Check Alarm Lamps issued

INOP 'Check Alarm Lamps' is issued

Ranked causes

1. Remote Alarm Device not connected (common)
2. Remote Alarm Device defective (occasional)
3. Remote Device I/O board in wrong slot (occasional)
4. Remote Device I/O board defective (occasional)
5. Main board defective (rare)

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

Keyboard or Mouse attached to Remote Extension Box not functioning

Keyboard or mouse connected through remote extension box does not work

Ranked causes

1. Remote Extension Box not connected or input device not connected (common)
2. Keyboard or Mouse defective (occasional)
3. Remote Extension Device defective (occasional)
4. Remote Device I/O board in wrong slot (occasional)
5. Remote Device I/O board defective (occasional)

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

No central monitoring possible patient safety

Monitor cannot connect to central monitoring station or other monitors on wireless network

Ranked causes

1. Monitor out of range of access point (common)
2. Wireless Adapter has no power (common)
3. Firmware revision in adapter is wrong (occasional)
4. Wireless adapter defective (occasional)
5. Wrong configuration in wireless adapter or access point (occasional)

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

AGM connected to RS232 port not functioning

AGM module fails to operate when connected to MIB/RS232 port

Ranked causes

1. MIB/RS232 port not configured for AGM (common)
2. Cable between AGM and monitor not connected or defective (common)
3. MIB/RS232 board in wrong slot (occasional)
4. MIB/RS232 board defective (rare)

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

Alarm occurs but no alarm sound caution

Alarm triggered but no audible alarm sound is produced

Ranked causes

1. Audible alarm indicators switched off (common)
2. Volume set to 0 (common)
3. Speaker defective (occasional)
4. Sound amplifier defective (rare)

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

Alarm occurs on screen but no LED or alarm sound on alarm device

Alarm message displays on monitor screen but remote alarm device does not respond

Ranked causes

1. Cabling not connected (common)
2. Cabling defective (occasional)
3. I/O board defective (occasional)
4. Remote Alarm Device defective (occasional)

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

Green Power On LED remains off after button press on remote device caution

Power LED fails to illuminate when power button pressed on remote extension or remote alarm device

Ranked causes

1. Cable to remote device incorrect (common)
2. Remote device defective (common)
3. Power switch board cable not connected (occasional)
4. Remote device interface board defective (occasional)

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

Keyboard or Mouse not functioning

Keyboard or mouse input directly attached to monitor does not respond

Ranked causes

1. Keyboard or Mouse not connected properly (common)
2. Keyboard or Mouse defective (occasional)
3. PS/2 I/O board in wrong slot (occasional)
4. PS/2 I/O Board defective (occasional)

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

Measurement assembly shows problem caution

Module diagnostic reports IR measurement assembly failure; assembly head defective, power supply failed, or cable issue

Ranked causes

1. Defective IR measurement assembly head (common)
2. Defective power supply (rare)
3. Defective cables (occasional)
4. Defective main PC board (rare)

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

Monitor alarm sound but not Remote Device

Alarm sound on monitor but not on Remote Alarm Device

Ranked causes

1. Remote Alarm Device not connected (common)
2. Remote Alarm Device defective (occasional)
3. Remote I/O board in wrong slot (occasional)
4. Remote I/O board defective (rare)

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

Monitor alarmed, Nurse Call did not activate patient safety

System triggers alarm but Nurse Call relay does not signal external system

Ranked causes

1. Incorrect configuration (Relay latency, Relay trigger) (common)
2. Cable connection to monitor or nurse call system not correct (common)
3. Nurse Call Relay board in wrong slot (occasional)
4. Nurse Call Relay board defective (rare)

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

No connectivity to PIC, no prompt or error message on monitor

Monitor has lost connection to Philips Information Center with no visible error indication

Ranked causes

1. Hardware defect - LAN cable not connected (common)
2. NGN Connector board in monitor defective (occasional)
3. Switch defect (occasional)
4. Configuration problem (occasional)

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

No marker pulse displayed on monitor or no ECG-OUT signal to Defib high voltage

ECG marker signal or defibrillator output signal not present despite data path integrity

Ranked causes

1. Cabling not connected (common)
2. ECG OUT board defective (LED does not switch on at power-on) (occasional)
3. ECG OUT board defective (LED remains on >20 seconds) (occasional)
4. Main Board defective (rare)

First check

Disconnect MMS and Defib cables

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

Optical path shows problem caution

Module diagnostic reports optical measurement path failure; sample cell contaminated or IR measurement assembly defective

Ranked causes

1. Defective or contaminated sample cell (common)
2. Defective IR measurement assembly head (occasional)
3. Defective power supply (rare)
4. Defective main PC board (rare)

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

Power supply shows problem caution

Module diagnostic reports power supply voltage failure; pump weak, voltage rails out of specification, or defective supply

Ranked causes

1. Weak pump (occasional)
2. Defective power supply (common)
3. Defective cables (occasional)
4. Defective main PC board (rare)

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

Print device Local unavailable status message

Status 'Print device Local 1 (Local 2) unavailable' issued. Printer job stalled.

Ranked causes

1. Printer not switched on (common)
2. Printer paper tray empty (common)
3. Cabling not connected correctly (occasional)
4. I/O board defect (rare)

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

Printouts not as expected

Printed reports do not appear as expected

Ranked causes

1. Printer paper size not configured (common)
2. Printer resolution not configured (common)
3. Printer color support misconfigured (common)
4. Printer not compatible (rare)

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

Recorder not communicating with system

Module not establishing communication with front-end FMS or system not configured properly

Ranked causes

1. Poor connection to front-end FMS (common)
2. Only one recorder module may be used with each monitor (occasional)
3. System not configured properly (occasional)
4. Too many modules connected (occasional)

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

Alarm LEDs illuminate but no alarm sound issued

Remote alarm device LEDs light up but no audio alarm generated

Ranked causes

1. Wrong I/O slot (occasional)
2. Speaker defective (occasional)
3. Remote device I/F defective (occasional)

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

CHECK MONITOR TEMP error caution

Temperature inside monitor exceeds safe operating limits

Ranked causes

1. Monitor ventilation obstructed (common)
2. Check environment for possible causes (occasional)
3. Main Board defective (occasional)

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

Disappearing waves in warmup mode

Gas measurement waveforms disappear during AGM warmup; may reappear in normal mode

Ranked causes

1. Pump or flow delivery issue (common)
2. Exhaust line blockage (occasional)
3. Instrument startup transient (common)

First check

Disconnect exhaust tubing

Test point: Exhaust line
Expected: Exhaust tubing removed if present

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

Frequent dropouts and network disconnects patient safety

Wireless connection frequently drops or disconnects during operation

Ranked causes

1. Excessive interference by other radio equipment or microwave ovens (common)
2. System capacity exceeded in coverage area (occasional)
3. Configuration problem (occasional)

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

Gas measurement accuracy problems patient safety

Measured gas values are inaccurate; calibration failures or sensor issues

Ranked causes

1. Accessory damage or misconfiguration (common)
2. Sample line not connected (common)
3. Calibration error (occasional)

First check

Inspect accessories for damage

Test point: All tubing and connectors
Expected: No leaks, kinks, or visible damage

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

Green On/Standby LED or Red Error LED remain off after button press caution

One or both of the power/error indicator LEDs fail to illuminate after pressing power button

Ranked causes

1. Power Switch Board not connected (common)
2. Power Switch board defective (occasional)
3. Main board defective (occasional)

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

INOP BAD SERVER LINK issued

INOP BAD SERVER LINK is displayed

Ranked causes

1. Unexpected data detected on MSL (common)
2. FMS or MMS incompatible software revision (common)
3. Communication between components not functioning (occasional)

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

INOP MsmtSrv not Supp message issued

INOP message 'MsmtSrv not Supp' is displayed

Ranked causes

1. Wrong Software Revision (common)
2. Too many measurement servers connected (common)
3. Unsupported type of measurement server (occasional)

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

INOP Speaker Malfunction message

INOP 'SPEAKER MALFUNCTION' is displayed

Ranked causes

1. Speaker cable disconnected (common)
2. Speaker defective (occasional)
3. Sound amplifier on main board defective (rare)

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

INOP Unsupported LAN error

Monitor displays unsupported LAN network error indicating network connectivity issue

Ranked causes

1. Network failure (common)
2. Monitor connected to wrong network (occasional)
3. IP address conflict after infrastructure re-installation (occasional)

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

INTERNAL COMM.MALF. error

Problem with I2C Bus communication inside monitor

Ranked causes

1. External display communication issue (occasional)
2. Video board defective (occasional)
3. Main board defective (occasional)

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

O2 calibration failed patient safety

O2 zero or span calibration check failed

Ranked causes

1. Flow rate error (common)
2. O2 span issue (common)
3. O2 sensor defective (occasional)

First check

Perform leakage check

Test point: O2 sensor flow path
Expected: No gas leakage detected

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

Other Bed Overview not available patient safety

Monitor cannot display patient overview from other beds on network

Ranked causes

1. Configuration problem in PIC (common)
2. Switch configuration problem (occasional)
3. Feature not available for wireless beds (occasional)

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

Red Error LED blinks (indicating cyclic reboots) caution

The red error LED blinks on and off repeatedly, indicating the monitor is repeatedly rebooting

Ranked causes

1. Hardware Failure (common)
2. Software Fault (occasional)
3. Hardware Failure (if software fix fails) (occasional)

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

SETTINGS MALFUNCTION error

Problem during cloning process or corrupted settings memory

Ranked causes

1. Problem during cloning process (occasional)
2. Memory space for settings corrupted (occasional)
3. Main board defective (occasional)

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

CHECK MENU LABELS error

Monitor menu labels corrupted or not matching configured defaults after cold start

Ranked causes

1. Memory space for menu labels corrupted (occasional)
2. Main Board defective (occasional)

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

CHECK SETTINGS error

Monitor settings corrupted or not matching configured defaults after cold start

Ranked causes

1. Memory space for settings corrupted (occasional)
2. Main board defective (occasional)

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

Communication problem during operation

LED flashing and INOP GA EQUIP MALFUNCT displayed; communication lost after startup

Ranked causes

1. Intermittent cable connection or internal monitor wiring issue (common)
2. Monitor motherboard failure (occasional)

First check

Verify AGM software and settings

Test point: Monitor Standby mode menu and RS232/MIB settings
Expected: Anesthesia SW #H30 installed and RS232/MIB correctly configured

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

Front End Measurement Module not recognized

Flexible Module Server LEDs ok but Front End Measurement Module not recognized

Ranked causes

1. Measurement Module or Connector defective (common)
2. MSL voltage out of range (occasional)

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

Gas measurement disturbed patient safety

Transient measurement disturbance or minor sensor issue occurring

Ranked causes

1. Minor transient IR head or O2 sensor problem (common)
2. Persistent IR head or O2 sensor issue (occasional)

First check

Observe measurement stability

Test point: Gas display readings
Expected: Stable readings within 10 seconds

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

Measurement Server configuration not supported

Prompt message 'Measurement Server Configuration not supported' is issued

Ranked causes

1. Unsupported Measurement Server Extension connected (common)
2. Measurement Server defective (occasional)

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

Measurement Server does not start but LEDs normal

LEDs are normal but server does not start up

Ranked causes

1. Communication lines broken in MSL cable (common)
2. MSL connector board defective (occasional)

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

No Test Sound issued

The monitor does not produce the expected test sound during boot sequence

Ranked causes

1. Speaker defective (common)
2. Main board defective (rare)

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

O2 measurement missing patient safety

O2 is not being measured or displayed by the AGM

Ranked causes

1. Sample line not connected (common)
2. O2 assembly failure (occasional)

First check

Verify sample line connected

Test point: Sample line connection
Expected: Sample line physically connected

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

Paper not feeding properly

Recorder paper does not advance correctly during operation

Ranked causes

1. Paper roll off center (common)
2. Dirty roller (common)

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

Poor print quality

Recorder produces low-quality or unclear printouts

Ranked causes

1. Printhead dirty (common)
2. Printhead failure (occasional)

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

More symptoms

Print device Remote unavailable status
Print job could not be queued message
Prompt message no central assigned to this bed
Sample cell misaligned or loose
Agent ID head requires replacement
Agent identification head removal
Alarm on VueLink but no monitor sound
Alarm sound issued but no LEDs light up
Barometric pressure check performance test
Buttons on Remote Extension Device not functioning
Calibration: Anesthetic Gas Module
Calibration: Anesthetic Gas Module flowrate
Calibration: Anesthetic Gas Module safety and performance
Calibration: barometric pressure baseline
Calibration: Barometric pressure check and calibration
Calibration: Span calibration check
Calibration: Total flowrate in normal mode
Calibration: Zero calibration
CHECK INPUT DEVICES INOP message
CHECK INTERNAL VOLTAGE error
Diagnostic check performance test
ECG Out/Marker In function does not function
Fan check performance test
Fan requires replacement
Flat-cable connectors loose or damaged after sample cell replacement
Flowrate check performance test
INOP message CHECK NURSE CALL RELAY is issued
INOP SERVERLINK MALF message displayed
Leakage check performance test
Main PC board removal or replacement
Measurement does not appear on monitor
Measurement Module currently ignored message
Measurement Server does not start up
Measurement Server not supported unplug message
Module does not lock into FMS
MSL Power High INOP issued
MSL Power Off INOP issued
MSL Power Overload INOP issued
No connectivity in multi-access point coverage area
Normal operation check performance test
O2 sensor removal or replacement
Other Bed Alarms not appearing
Overview or Printing does not work
Power fuses require replacement
Power supply unit removal or replacement
Power-on and self-test check
Printing message but no report printed
Pump requires replacement
Pump test performance check
Recorder won't run
Red Error LED flashes
Red Error LED stays on
Remote input device attached to Remote Extension Device not functioning
Safety verification after service event
Sample cell pneumatic connections loose or damaged
Solenoid valve #1 removal or replacement
Solenoid valve #2 requires replacement
Span calibration check performance test
SpeedPoint Knob Rotation, Joystick Control or Selection control not functioning
System thinks door is open when it is not
System thinks recorder is out of paper when it is not
Too many modules of same type connected message
Top cover PC board requires replacement
Touch position invalid
Unrecognized Measurement Module in slot
Visual inspection after repair
Watertrap manifold and protector require replacement
Zero calibration check performance test

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

Error codes

Code	Meaning	Trigger	Severity
`AGENT IDENT MALF`	Agent identification equipment malfunction	Serious Agent-ID assembly failure	error
`AGENT IDENT ZERO FAILED`	Agent ID zero calibration failed	Agent identification sensor zero calibration failed	error
`AGT UNABLE TO MEASURE`	Agent measurement unable to measure	Agent measurement failure or unavailable	error
`Bad Measurement Server`	Measurement Server incompatible or defective	Incompatible server connected	error
`BAD SERVER LINK`	Communication link to server bad	Unexpected data or incompatible software	error
`Check Alarm Lamps`	Remote Alarm Device problem	Alarm device disconnected, defective, or misconfigured	error
`CO2 UNABLE TO MEASURE`	CO2 sensor unable to measure	CO2 measurement failure or unavailable	error
`GA EQUIP MALF`	Gas analyzer equipment malfunction	AGM-monitor connection problem or AGM hardware failure	critical
`GA INCOMPATIBLE`	AGM incompatible with monitor	AGM software version incompatible with monitor version	error
`GA. NOT AVAILABLE`	Gas analyzer not available or not responsive	AGM powered off or communication lost	error
`GAS AN ACCURACY ?`	Gas analyzer accuracy suspect or unknown	Measurement accuracy check shows values out of specification	warning
`GAS OCCLUSION`	Gas flow path occluded	Gas flow blocked internally or externally	error
`GA ZERO FAILED`	Gas analyzer zero calibration failed	Zero calibration routine could not complete successfully	error
`INOP GA EQUIP MALFUNCT`	Gas analyzer equipment malfunction	AGM communication lost or hardware fault during operation	error
`Measurement Server Configuration not supported`	Unsupported Measurement Server Extension connected or server defective	Unsupported extension or defective server	error
`MSL Power High`	Excessive power draw on MSL	Too many modules connected	warning
`MSL Power Off`	MSL power shutdown due to overload	Excessive power for over 15 minutes	critical
`MSL Power Overload`	Short circuit in MSL system	Electrical short detected	critical
`MsmtSrv not Supp`	Measurement Server not supported	Wrong software or unsupported server type	error
`N2O UNABLE TO MEASURE`	N2O sensor unable to measure	N2O measurement failure or unavailable	error
`O2 EQUIP MALF`	O2 equipment malfunction	O2 sensor or span calibration failed	error
`O2 UNABLE TO MEASURE`	O2 sensor unable to measure	O2 measurement failure or unavailable	error
`O2 ZERO FAILED`	O2 sensor zero calibration failed	O2 zero calibration could not establish valid baseline	error
`SERVERLINK MALF`	MSL hardware communication faulty	Hardware malfunction in interface	critical
`SPEAKER MALFUNCTION`	Speaker or audio amplifier not functioning	Speaker cable disconnected or defective	error
`XXX MEAS DISTURBED`	Gas measurement disturbed (N2O/CO2/agent/O2)	Transient measurement error or sensor instability	warning

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

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0 fixes logged by technicians through their AI, with outcomes, for this model.

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