Patient monitors · CARESCAPE family

GE Healthcare CARESCAPE V100: troubleshooting and error codes

The ServiceForge knowledge base holds 35 documented symptoms for the GE Healthcare CARESCAPE V100, with 51 ranked causes, 105 diagnostic checks with test points and expected values, and 62 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Component replacement checkout procedures

Required functional checks after detaching or replacing specified components

Ranked causes

1. Printer assembly replaced or detached (unknown)
2. SpO2 board replaced or detached (unknown)
3. Front bezel replaced or detached (unknown)
4. Main board replaced or detached (unknown)
5. Display board replaced or detached (unknown)
6. UI board replaced or detached (unknown)
7. Rear case replaced or detached (unknown)

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

Battery does not work or does not last long

Battery fails to function or provides insufficient duration; monitor may not operate on battery power or runtime is reduced

Ranked causes

1. Battery needs to be charged (common)
2. Battery in storage or non-use condition for months (occasional)
3. Battery left in prolonged discharged state (occasional)
4. Battery installed incorrectly (occasional)

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

Exergen temperature does not display on monitor

No temperature reading appears on patient monitor from Exergen scanner; no communication between scanner and monitor

Ranked causes

1. Exergen scanner cable connector not securely fastened (common)
2. Exergen scanner battery door not securely fastened (common)
3. Corrosion on scanner connector contacts (occasional)
4. Host communication bit rate set incorrectly (occasional)

First check

Verify cable connector connection

Test point: Exergen scanner cable connector
Expected: Connector fully seated and fastened

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

System corrective maintenance after component replacement patient safety

Functional verification and safety testing required after detaching or replacing monitor components including printer, board modules, case, battery, fascia, and Exergen scanner cable

Ranked causes

1. Component replacement requiring checkout (common)
2. Electrical safety compliance after board module or case modification (common)
3. Battery replacement requiring DC power verification (occasional)

First check

Visual inspection for physical damage

Test point: Case, display screen, keypad, external connectors
Expected: No cracks, scratches, loose connectors, frayed cables, illegible labels

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

BATTERY LOW indicator remains lit or flashing

Battery low warning persists even after charging attempts; indicator does not extinguish

Ranked causes

1. Battery unable to recharge (occasional)
2. Battery needs recalibration or is defective (occasional)

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

Exergen temperature does not appear on monitor

Exergen infrared thermometer signal not displayed on CARESCAPE V100 monitor screen; temperature reading missing from vital signs display

Ranked causes

1. Host communication bit rate set incorrectly (common)
2. Loss of electrical contact between scanner and monitor (common)

First check

Verify host communication bit rate setting

Test point: Monitor advanced configuration mode, bit rate parameter
Expected: 9600 baud

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

Battery low alarm escalated

BATTERY LOW indicator flashes; high-priority alarm when approximately 5 minutes of battery charge remains; user cannot initiate new NIBP determinations or printouts

Ranked causes

1. Battery charge depleted to 5 minutes remaining (common)

First check

Monitor battery charge level

Test point: Battery indicator
Expected: Approximately 5 minutes of battery charge remaining

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

Battery low alarm issued

BATTERY LOW indicator lights solid red; low-priority alarm issued when approximately 45 minutes of battery charge remains

Ranked causes

1. Battery charge depleted to 45 minutes remaining (common)

First check

Monitor battery charge level

Test point: Battery indicator
Expected: Approximately 45 minutes of battery charge remaining

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

Battery only charged for short period before indicating full charge

Battery charges quickly but does not reach expected capacity; BATTERY OK indicator lights prematurely

Ranked causes

1. Battery being charged for the first time (common)

First check

Verify BATTERY OK indicator lights after 8-hour charge

Test point: BATTERY OK LED indicator
Expected: Indicator lights continuously after 8 hours of charging

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

Battery replacement and memory loss alarm patient safety

After replacing monitor battery, alarm code E00 displays indicating memory lost and settings returned to factory defaults

Ranked causes

1. Battery replacement triggers memory loss (common)

First check

Verify alarm code E00 displays on monitor screen

Test point: Monitor display
Expected: E00 alarm code visible

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

Battery will not charge

Battery fails to accept charge; no increase in charge level observed despite connection to power supply

Ranked causes

1. Temperature outside charging range (occasional)

First check

Measure ambient temperature around battery and charging circuit

Test point: Battery compartment or monitor case near charging port
Expected: Temperature between 16°C (59°F) and 30°C (86°F) for charging; internal 15–40°C (57–109°F) for full charge, 15–40 °C internal

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

Calibration: Alarm mode selection

Select alarm mode (IEC or legacy) through service mode. Affects how monitor announces and silences alarm conditions.

Ranked causes

1. Alarm mode requires configuration (unknown)

First check

Enter service mode

Test point: min window
Expected: 0

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

Calibration: Button functionality test

Verify Inflate/Stop, Silence, and Alarm buttons respond correctly and initiate NIBP, clear alarms, and cycle alarm settings

Ranked causes

1. Button electrical contact failure or mechanical damage (unknown)

First check

Verify Inflate/Stop button initiates NIBP

Test point: Monitor display
Expected: NIBP determination starts when Inflate/Stop pressed
Tools: Monitor unit

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

Calibration: Exergen temperature scanner

Verify Exergen temperature scanner calibration against Certified Master reference instrument using black body verifier; acceptable difference is ±0.2°C.

Ranked causes

1. Exergen temperature scanner out of calibration (unknown)

First check

Power on black body verifier and allow warm-up

Test point: Black body verifier LED
Expected: Red LED lit
Tools: 9-volt battery or power supply

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

Calibration: Language selection

Select language for printed reports through service mode. Greek, Latvian, Lithuanian, Romanian, and Turkish reports print in English only.

Ranked causes

1. Language configuration required (unknown)

First check

Enter service mode

Test point: min window
Expected: 0

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

Calibration: NIBP algorithm selection

Select DINAMAP algorithm type (Auscultatory or SuperSTAT) through service mode. Changing algorithm affects NIBP performance.

Ranked causes

1. NIBP algorithm requires configuration (unknown)

First check

Enter service mode

Test point: min window
Expected: 0

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

Calibration: NIBP functional test

Verify NIBP measurement completes successfully in manual, Auto, and STAT modes with simulator; confirms system operation without assessing numeric accuracy

Ranked causes

1. NIBP measurement sequence or pump operation failure (unknown)

First check

Verify NIBP determination in manual mode

Test point: Monitor display (Systolic, Diastolic, MAP, HR windows)
Expected: NIBP measurement completes and displays systolic, diastolic, MAP and heart rate values
Tools: NIBP simulator with adult cuff

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

Calibration: NIBP overpressure alarm verification patient safety

Verify E80 alarm and audible alert trigger when NIBP pump port is restricted, indicating overpressure protection is functional

Ranked causes

1. Overpressure detection circuit failure (unknown)

First check

Verify E80 alarm triggers on restricted pump port

Test point: Systolic window and audible alarm output
Expected: E80 displays in Systolic window and audible alarm sounds when pump port blocked
Tools: Monitor unit

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

Calibration: NIBP overpressure valve verification caution

Verify relief valve opens at correct pressures (approximately 300 mmHg and 150 mmHg) to prevent excessive cuff pressure

Ranked causes

1. Relief valve malfunction or out of adjustment (unknown)

First check

Verify high-pressure relief valve opens

Test point: Manometer pressure reading
Expected: Valve opens and releases pressure when inflated near 300 mmHg
Tools: Digital manometer, inflation bulb

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

Calibration: NIBP pneumatic leakage

Verify pneumatic system integrity by measuring pressure drop over 60 seconds; system should not lose more than specified pressure

Ranked causes

1. Pneumatic system leakage (unknown)

First check

Inflate pneumatic system and measure pressure drop

Test point: Manometer connection
Expected: Pressure stabilized at 210 mmHg drops by specified amount over 60 seconds
Tools: Digital manometer, inflation bulb, stopwatch

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

Calibration: NIBP pressure transducer

Verify and adjust NIBP pressure transducer readings at 50, 100, 150, and 200 mmHg to ensure accuracy within acceptable tolerance.

Ranked causes

1. NIBP pressure transducer out of tolerance (unknown)

First check

Verify NIBP pressure reading at 200 mmHg (Systolic window)

Test point: Systolic window
Expected: 200 mmHg
Tools: inflation bulb, manometer

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

Calibration: NIBP pressure transducer verification

Verify pressure transducer reads accurately at four test pressures (200, 150, 100, 50 mmHg) by comparing systolic and diastolic window readings

Ranked causes

1. Pressure transducer out of calibration (unknown)

First check

Verify pressure transducer at 200 mmHg

Test point: Systolic and Diastolic windows
Expected: Both windows display 200 mmHg when system inflated to 200 mmHg
Tools: Digital manometer, inflation bulb

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

Calibration: Revert to factory defaults high voltage

Reset monitor to factory default settings by disconnecting battery. User mode settings, alarm limits, date/time, AC line frequency, and clinical history are lost. Monitor enters fatal mode and displays E00 alarm code after battery reconnection.

Ranked causes

1. Factory reset procedure initiated (unknown)

First check

Power off the monitor

Test point: Monitor display
Expected: Monitor powered off

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

Calibration: SpO2 technology selection patient safety

Select SpO2 technology type through service mode (No SpO2, Nellcor OxiMax, Masimo SET, or GE TruSignal). Incorrect setting causes fatal alarm 930.

Ranked causes

1. SpO2 technology requires correct configuration (common)

First check

Enter service mode

Test point: min window
Expected: 0

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

Calibration: Temperature technology selection

Select temperature measurement technology (No temperature or Exergen) through service mode.

Ranked causes

1. Temperature technology requires configuration (unknown)

First check

Enter service mode

Test point: min window
Expected: 0

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

E13 BATTERY LOW alarm triggered

Error code E13 displays in min window when attempt made to start NIBP determination or printout during high-priority BATTERY LOW alarm; BATTERY LOW indicator flashes

Ranked causes

1. Attempt to start NIBP determination or printout during high-priority BATTERY LOW alarm (occasional)

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

Functional test: DC power supply

Verify DC power supply connection and CHARGING indicator illumination.

Ranked causes

1. DC power supply not functioning (unknown)

First check

Connect DC power supply to monitor DC socket

Test point: DC power connector
Expected: Secure connection
Tools: DC power supply

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

Functional test: Display LEDs patient safety

Verify all 7-segment LEDs and discrete LEDs illuminate and show correct color during power-on self-test.

Ranked causes

1. LED segment or discrete LED failure (unknown)

First check

Power on monitor and observe self-test

Test point: All display segments and discrete LEDs
Expected: All 7-segment LEDs light correct color, all discrete LEDs light

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

Functional test: NIBP determination with simulator

Verify NIBP measurement completes and displays systolic, diastolic, MAP and heart rate in manual, auto and STAT modes.

Ranked causes

1. NIBP measurement not functioning (unknown)

First check

Connect adult cuff to NIBP simulator

Test point: NIBP connector
Expected: Secure connection, correct cuff size
Tools: Adult NIBP cuff, simulator

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

Functional test: NIBP overpressure threshold

Verify NIBP overpressure relief valve opens at specified pressures (near 300 mmHg and near 150 mmHg in different modes).

Ranked causes

1. NIBP overpressure valve malfunction (unknown)

First check

Enter service mode, set to mode 1

Test point: Monitor min window
Expected: 1 displays
Tools: Monitor

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

Functional test: NIBP pneumatic system leak

Check NIBP pneumatic system for leaks by measuring pressure drop over 60 seconds at 210 mmHg.

Ranked causes

1. NIBP pneumatic system leak (unknown)

First check

Power on monitor and access service mode

Test point: Monitor display min window
Expected: 1 displays in min window
Tools: Monitor

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

Functional test: NIBP pump and button

Verify NIBP button initiates determination, pressure pump functions, and E80 alarm displays on pump blockage.

Ranked causes

1. NIBP pump not functioning (unknown)

First check

Disconnect NIBP cuff and hose from monitor

Test point: NIBP connector
Expected: Disconnected

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

Functional test: SpO2 parameter

Verify SpO2 sensor displays pulse, saturation, signal strength; alarm triggers on sensor removal and clears on replacement.

Ranked causes

1. SpO2 sensor or cable malfunction (unknown)

First check

Connect SpO2 sensor and cable

Test point: SpO2 connector
Expected: Secure connection
Tools: SpO2 sensor, appropriate cable

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

Monitor enters battery low shutdown patient safety

After 5 minutes of high-priority BATTERY LOW alarm, monitor alarms for 2.5 minutes then shuts down completely; BATTERY LOW indicator flashes; no alarm code displayed

Ranked causes

1. High-priority BATTERY LOW alarm active for 5 minutes without DC power connection (common)

First check

Verify DC power connection before shutdown

Test point: Power supply connection port
Expected: Monitor connected to DC power supply

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

Saving calibration and service mode settings

Procedure to save NIBP pressure transducer calibration and service mode setting changes after configuration modifications.

Ranked causes

1. Service mode settings changed and require saving (unknown)

First check

Navigate to save settings screen in advanced configuration mode

Test point: Min window display
Expected: 6 displays in the min window

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

Error codes

Code	Meaning	Trigger	Severity
`---`	SpO2 sensor off finger	SpO2 sensor detached or displaced from patient	warning
`891`	Hostcomm command forced safe state	Communications protocol violation from host	critical
`892`	Hostcomm buffer full	Host communication buffer overflow	critical
`920`	Communication timeout between main processor and NIBP subprocessor	No response from NIBP subprocessor within timeout period	error
`921`	Startup communication failure with NIBP processor	NIBP processor fails to initialize communication on power-up	critical
`922`	NIBP processor reports communication timeout	NIBP subsystem communication loss detected by NIBP processor	critical
`923`	Determination time too long	NIBP measurement takes longer than expected	error
`930`	No status from SpO2 module for 60±10 seconds; Fatal error reported	SpO2 module fails to report status or reports fatal error	error
`930`	Fatal alarm triggered by incorrect SpO2 technology setting	Incorrect SpO2 technology configuration in service mode	critical
`940`	TEMP data samples less than 45 in 5 seconds while idle	Temperature sensor not providing adequate data	critical
`941`	Failure of temperature reference resistor reading on startup	Temperature calibration reference fails during initialization	error
`950`	NIBP pump on during idle or over current detected	NIBP pump running when should be idle, or excessive current draw	error
`951`	NIBP valve stuck closed during cuff typing	NIBP inflation valve unable to open during measurement	error
`952`	NIBP PT2 pressure higher than 150 for greater than 15 seconds while idle	Abnormal pressure detected in idle state	error
`970`	Printer time base failure	Printer internal timing circuit fails	error
`971`	RAM test failure	RAM memory test fails during initialization	critical
`972`	ROM checksum failure	ROM memory checksum verification fails	critical
`973`	Secondary processor communication error during initialization	Secondary processor fails to respond during startup	critical
`974`	Calibration data invalid on initialization or monitor never calibrated	Calibration data corrupted or missing on startup	error
`975`	Could not save calibration data	Failure to write calibration parameters to memory	error
`976`	Power supply voltage has peaked above 18 Volts	Power supply output exceeds 18 V during normal operation	error
`979`	Unknown power processor mode received on power-up	Power processor reports invalid operating mode	critical
`980`	Heap memory exhausted	Dynamic memory allocation fails during operation	error
`984`	Unused vector called	Unimplemented interrupt vector or function call executed	error
`985`	RTK 400hz timer re-entry	400 Hz real-time kernel timer called recursively	critical
`986`	RTK 50 Hz timer re-entry	50 Hz timer interrupt handler called while already executing	error
`989`	RTK overrun	Real-time kernel task overrun detected	error
`994`	Stack overflow	Stack memory exceeded during nested function calls	critical
`999`	Background task stalled	Background process stops responding	critical
`bAtt`	Low Battery for Exergen scanner	Exergen scanner battery charge < minimum level	warning
`BATTERY LOW`	Battery charge is critically low	Battery charge depleted to approximately 45 minutes (low-priority) or 5 minutes (high-priority)	warning
`Blank display`	Dead battery	Battery voltage has dropped below minimum operating level	error
`(blank display)`	Dead Battery in Exergen scanner	Exergen scanner battery completely discharged	error
`Display blank, high pitch alarm`	FAILSAFE error condition	System detects mains power supply failure or critical hardware fault	critical
`E--`	Exergen unable to take temperature determination or low battery	Scanner cannot determine temperature or battery voltage drops below usable level	error
`E--`	Temp scanner error (Exergen)	Exergen infrared scanner reports error or communication loss	warning
`E00`	Memory lost; user mode, alarm limits, AC line frequency, date/time settings returned to factory defaults; all clinical history erased	Battery replacement or power loss causes non-volatile memory reset	warning
`E00`	Memory lost alarm	Monitor battery disconnected and reconnected, causing loss of user mode settings, alarm limits, AC line frequency, and clinical history	warning
`E10`	Printer no paper	Printer detects empty paper tray	warning
`E11`	Printer too hot	Printer thermal sensor exceeds safe operating temperature	warning
`E13`	Battery low	Battery voltage drops below operational threshold	warning
`E13`	BATTERY LOW - critically low battery charge with attempted operation	Attempt to initiate NIBP determination or printout during high-priority BATTERY LOW alarm	error
`E20`	SpO2 sensor disconnected	SpO2 sensor cable disconnected from monitor	warning
`E21`	SpO2 sensor broken or wrong type; replace sensor	SpO2 sensor damaged or incompatible type detected	error
`E25`	SpO2 lost pulse	Signal quality drops below acceptable threshold after initial detection	warning
`E61`	Temp probe broken	Temperature probe detected as physically damaged or non-functional	error
`E63`	Temp probe disconnected	Temperature probe cable unplugged or connector loose	warning
`E66`	Temp probe too hot	Temperature probe sensor reads exceeds safe limit	warning
`E80`	NIBP overpressure	NIBP cuff pressure exceeds safe limit	error
`E82`	NIBP excess air in cuff	Cuff inflation detected but no pressure rise	error
`E83`	NIBP pump timeout	Cuff fails to inflate within expected time	error
`E84`	Total timeout	NIBP determination exceeds time limits	error
`E85`	NIBP level timeout	Cuff pressure does not reach expected level	error
`E87`	Blood pressure below range	Measured systolic pressure below detection range	error
`E88`	Blood pressure above range	Measured systolic pressure exceeds detection range	error
`E89`	NIBP no determination	NIBP unable to complete measurement cycle	warning
`Err`	Processing error	Scanner internal processing error or malfunction	error
`FAILSAFE`	System failure requiring immediate reset	System failure detected; alarm code displays for >5 seconds	critical
`HI`	High Target temperature detected by Exergen scanner	Measured temperature > 43 °C (110 °F)	info
`HI A`	High ambient temperature	Ambient temperature exceeds 40 °C (104 °F)	warning
`LO`	Low Target temperature detected by Exergen scanner	Measured temperature < 16 °C (61 °F)	warning
`LO A`	Low Ambient temperature for Exergen scanner	Ambient temperature < 16 °C (60 °F)	warning

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

Community

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.