Patient monitors · CARESPACE family

GE Healthcare CARESCAPE B650: troubleshooting and error codes

The ServiceForge knowledge base holds 71 documented symptoms for the GE Healthcare CARESCAPE B650, with 134 ranked causes, 75 diagnostic checks with test points and expected values, and 4 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Unit does not power on from AC mains high voltage

Power cord connected to wall outlet and monitor, mains voltage indicator not lit, no power management LEDs lit

Ranked causes

1. Power cord loose or faulty (common)
2. Blown fuses (common)
3. Power outlet does not meet specifications (occasional)
4. AC/DC power supply cable loose or faulty (occasional)
5. AC inlet cable loose or faulty (occasional)
6. AC/DC power supply unit faulty (occasional)
7. DC/DC board faulty (occasional)

First check

Verify power cord connection

Test point: Wall outlet and monitor AC inlet
Expected: Power cord firmly seated on both ends

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

Audible alarms do not work patient safety

Audio alarm sounds are not produced when alarm conditions occur

Ranked causes

1. Audible alarms turned off in settings (common)
2. Alarm volume set too low (common)
3. Speaker failure (occasional)
4. Speaker cable loose or faulty (occasional)
5. Tone generator or audio amplifier failure (occasional)

First check

Verify audible alarms enabled

Test point: Alarms Setup menu
Expected: Audible alarms enabled

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

Bedside monitor does not associate with access point (wireless)

Patient monitor fails to establish wireless connection or authenticate with access point

Ranked causes

1. Out of wireless coverage area (common)
2. WLAN radio disabled (common)
3. SSID mismatch (occasional)
4. Security settings mismatch (occasional)
5. Access control list blocking monitor (rare)

First check

Verify WLAN radio status

Test point: WLAN radio setting
Expected: Radio enabled

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

On/standby button LED not illuminating when pressed

Red on/standby button LED on DC/DC board does not light when on/standby button is pressed, unit cannot be turned on

Ranked causes

1. User interface to CPU board cable loose or faulty (common)
2. User interface board faulty (occasional)
3. Keypad faulty (occasional)
4. DC/DC board failure (occasional)
5. CPU failure (rare)

First check

Verify user interface to CPU board cable

Test point: Cable connections at both ends
Expected: Cable intact and properly seated

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

On/standby LED not lit when button pressed high voltage

Red LED on DC/DC board does not illuminate when on/standby button is pressed, indicating the power supply board does not recognize the button press

Ranked causes

1. Faulty keypad (unknown)
2. Faulty user interface board (unknown)
3. User interface cable not connected to CPU board (unknown)
4. Faulty DC/DC board (unknown)
5. Faulty CPU board (unknown)

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

ACDC LED not lit with AC mains connected high voltage

Green ACDC LED does not illuminate when patient monitor is connected to live AC mains, even in standby mode

Ranked causes

1. Main fuses blown (common)
2. AC/DC cable disconnected from DC/DC board (common)
3. Faulty AC/DC power supply unit (occasional)
4. Faulty DC/DC board (occasional)

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

Bedside monitor not registered to network (wired S/5)

Patient monitor fails to register on wired S/5 network

Ranked causes

1. iCentral problem or cabling between iCentral and hub (common)
2. Bedside monitor problem or cabling between monitor and hub (common)
3. Monitor missing from network setup (occasional)
4. Monitor missing from view setup (occasional)

First check

Check iCentral and network cabling

Test point: Cable connections at iCentral and hub/switch
Expected: Secure connections

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

Monitor starts but display remains black

Unit powers up but LCD backlight does not illuminate, no image displayed

Ranked causes

1. DC/DC board not supplying +12V for backlight (common)
2. Inverter cable loose or faulty (occasional)
3. Backlight LED adapter board faulty (occasional)
4. Backlight cable loose or faulty, or LED unit faulty (occasional)

First check

Check yellow +12V LED status on DC/DC board

Test point: Yellow +12V LED in DC/DC board
Expected: LED illuminated indicating +12V present

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

Unit does not power on from battery

Monitor not connected to AC mains, battery installed but unit will not start

Ranked causes

1. Battery empty (common)
2. Battery failure or missing (common)
3. Battery cable loose (occasional)
4. DC/DC board failure (occasional)

First check

Verify battery charge status

Test point: Battery charge/failure indicator LED
Expected: Battery fully or adequately charged

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

External alarm light disconnect: USB connection failed

Message displayed when USB cable between patient monitor and secondary display is disconnected while monitor is on, or secondary display turned to standby while monitor is on, or user interface board communication failure

Ranked causes

1. USB cable disconnected (common)
2. Secondary display turned to standby (occasional)
3. User interface board communication failure (occasional)

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

Feature unavailable or function cannot be performed

User is unable to perform a function or access a feature on the patient monitor.

Ranked causes

1. License has not been purchased for the feature (common)
2. Trial license has expired for the feature (occasional)
3. License is not installed properly (occasional)

First check

Verify license purchase status

Test point: Webmin Configuration > Licenses
Expected: License purchased and listed for the feature

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

Monitor starts but display remains white

Unit powers up, backlight illuminates but no image appears on screen, no error messages displayed

Ranked causes

1. Display cable damaged or loose (common)
2. LCD display faulty (occasional)
3. Display controller section of CPU board faulty (occasional)

First check

Inspect display cable

Test point: Display cable connections to LCD and CPU board
Expected: Cable intact and properly connected

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

No waveforms or parameters displayed at CIC Pro center

Patient waveforms and parameters not visible on central information center workstation while network shows connected status

Ranked causes

1. Network connectivity issues between monitor and CIC (common)
2. Monitor not registered to network (common)
3. Missing from network or view setup (occasional)

First check

Verify wired network connection

Test point: Network connection indicator
Expected: Connected status displayed

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

Patient monitor internal connections loose or damaged caution

Visual inspection reveals loose screws, disconnected cables, or loose objects after disassembly

Ranked causes

1. Screws not tightened properly (occasional)
2. Cables disconnected from connectors (occasional)
3. Loose objects inside patient monitor enclosure (rare)

First check

Perform thorough visual inspection before disassembly

Test point: Entire exterior
Expected: No physical damage visible, all peripheral devices properly connected, unit powered

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

Speaker failure

Speaker is not producing audio output

Ranked causes

1. Speaker cable loose (common)
2. Speaker failure (common)
3. CPU tone generator or audio amplifier failure (occasional)

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

Start-up sequence does not advance beyond GE logo screen

Monitor starts but startup sequence stalls at GE logo, error messages may appear

Ranked causes

1. uDOM missing or loose (common)
2. uDOM software corrupted (occasional)
3. uDOM has incompatible software (occasional)

First check

Verify uDOM connection and alignment

Test point: uDOM connector on CPU board
Expected: uDOM properly seated and aligned

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

Acquisition module does not work with patient monitor

An acquisition module fails to function when connected to the patient monitor; isolation of problem source is required.

Ranked causes

1. Suspect acquisition module is faulty (occasional)
2. Patient monitor is faulty (occasional)

First check

Connect known good module to suspect patient monitor

Test point: Module slot
Expected: Known good module operates normally

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

Alarm light does not illuminate when alarm condition exists caution

Alarm condition is active, audible alarms work and message visible, but light does not illuminate

Ranked causes

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

First check

Inspect alarm light cable

Test point: Alarm light cable connection to user interface board
Expected: Cable properly connected

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

Barcode reader does not read multi-field barcode correctly

Multi-field barcode information not populated correctly to Admit menu fields

Ranked causes

1. Barcode reader parser configuration incorrect (common)
2. Barcode reader incompatible with parser configuration (occasional)

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

Defibrillator synchronization connector signals invalid patient safety

ECG, Arterial BP, or Marker Out signals from defibrillator sync connector do not match expected waveforms when tested with oscilloscope

Ranked causes

1. Loose or damaged synchronization connector (common)
2. Faulty analog output cable (occasional)

First check

Connect test equipment to ECG analog output

Test point: Defibrillator Sync connector pin 7 (Grey wire)
Expected: ECG analog output signal present
Tools: Oscilloscope, Analog output cable 2000633-001

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

Hard keys or power indicator LEDs inoperative

Hard keys do not respond or power indicator LEDs in keypad do not illuminate

Ranked causes

1. Keypad faulty (common)
2. User interface board faulty (occasional)

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

Monitor battery requires replacement patient safety

Replace monitor battery message indicates full-charge capacity degraded significantly or battery failure detected

Ranked causes

1. Battery full-charge capacity degraded compared to design capacity (common)
2. Battery failure detected (occasional)

First check

Verify battery status on monitor

Test point: Monitor Setup > Battery Status > Advanced
Expected: Replace monitor battery message visible on screen

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

Patient monitor problem caused by incompatibility or misconfiguration

Reported issue may stem from device incompatibility or incorrect platform/clinical configuration rather than hardware failure

Ranked causes

1. Connected peripheral device incompatible with monitor (occasional)
2. Incorrect platform or clinical configuration (occasional)

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

Recorder does not work caution

Thermal paper recorder unit fails to operate or produce output on patient monitor.

Ranked causes

1. Graph location not configured correctly (common)
2. Recorder board failure (occasional)

First check

Verify graph location configuration

Test point: Monitor Setup > Printing > Devices > Setup
Expected: Graph location configured correctly

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

Service Monitor Error 0xHOST1001: Internal temperature out of specification caution

Error message displayed when one of the internal temperature sensors indicates patient monitor inside temperature is out of specification; message persists while condition is valid

Ranked causes

1. Temperature too high (common)
2. Temperature too low or monitor transported outside operating range (occasional)

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

System time incorrect when not connected to network

Patient monitor displays incorrect system time when operating standalone without network connection.

Ranked causes

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

First check

Verify CPU timekeeper battery status

Test point: CPU timekeeper battery
Expected: Battery present and functional

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

Touchscreen inoperative

Touchscreen does not respond to any touch input

Ranked causes

1. Touchscreen cable loose (common)
2. Faulty touchscreen sensor (occasional)

First check

Verify touchscreen cable connections

Test point: Touchscreen cable to user interface and DC/DC board
Expected: Cable properly seated on both connectors

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

Trim knob inoperative

Trim knob encoder does not respond to rotation

Ranked causes

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

First check

Verify trim knob cable connection

Test point: Trim knob encoder cable to user interface board
Expected: Cable properly connected

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

Unable to upload license file

Patient monitor fails to accept or upload a license file to enable features.

Ranked causes

1. License file is corrupted (occasional)
2. License file is for different serial number device (occasional)

First check

Verify license file is not corrupted

Test point: File integrity check before upload
Expected: License file valid and uncorrupted

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

User interface board functions inoperative

All user interface board functions not working

Ranked causes

1. UI cable loose or faulty (common)
2. UI board faulty (occasional)

First check

Inspect UI cable

Test point: UI cable connections between boards
Expected: Cable intact and properly connected

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

Wrong character displayed when barcode is read

Barcode scanner produces incorrect characters when reading barcodes

Ranked causes

1. Keyboard locale not configured correctly (common)
2. Barcode reader language configuration incorrect (occasional)

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

Alarm light does not illuminate during power-on self test caution

Alarm light does not illuminate during startup sequence

Ranked causes

1. Warm start condition (less than 15 minutes since last power-up) (common)

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

Battery conditioning needed

Battery requires conditioning to optimize charge capacity

Ranked causes

1. Battery conditioning required (common)

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

Battery failure detected

Battery failure condition detected by monitoring system

Ranked causes

1. Battery internal failure (common)

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

Battery replacement needed

Battery full capacity is 50% or less compared to a new battery

Ranked causes

1. Battery capacity degraded (common)

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

Battery temperature high caution

Battery temperature error detected, caused by faulty battery or battery management error

Ranked causes

1. Faulty battery or battery management issue (common)

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

Calibration: CPU timekeeper battery

CPU timekeeper battery requires replacement every 5 years or when Service Monitor Error Code 0xHOST1100 is displayed

Ranked causes

1. CPU timekeeper battery aged or depleted (common)

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

E-module CPU board failure

CPU board EMBC section fails to manage RS-485 communication with E-modules.

Ranked causes

1. EMBC section failure or communication error (occasional)

First check

Review EMBC Frame logs for errors

Test point: Webmin section 11.3.4 EMBC logs
Expected: No EMBC failures or communication errors logged

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

E-module DC/DC board failure

DC/DC power supply board for E-module interface fails to provide required supply voltages.

Ranked causes

1. Supply voltages out of specification (common)

First check

Measure VSYS voltage

Test point: Hardware statistics in Webmin section 11.3.1
Expected: VSYS voltage within specification
Tools: Webmin Hardware Statistics

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

E-module hinge flex board loose or faulty

Hinge flex board connecting E-module interface has loose or damaged connections.

Ranked causes

1. Hinge flex board loose or improperly connected (common)

First check

Inspect hinge flex board integrity

Test point: Hinge flex board physical condition
Expected: Hinge flex board intact with no visible damage or cracking

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

E-module incompatible

Acquisition E-module is not compatible with the patient monitor.

Ranked causes

1. Module not in compatible modules list (occasional)

First check

Verify module on compatibility list

Test point: Supplemental information manual
Expected: Module listed as compatible with CARESPACE Monitor B650

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

E-module interface board failure

E-module interface board fails to generate required supply voltages for connected modules.

Ranked causes

1. E-module interface board does not generate supply voltages (occasional)

First check

Measure E-module interface supply voltages

Test point: E-module interface board outputs
Expected: +15VD, +15Va, -15Va, +5Vmod all within specification

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

Error 1: PMC update failed high voltage

Error message indicates unexpected failure in PMC software update; instructs user to turn monitor off then on again

Ranked causes

1. Unexpected PMC software update failure (rare)

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

Error 2: PMC update requires AC mains supply high voltage

Error message indicates PMC software update to DC/DC board failed because monitor was running on battery power

Ranked causes

1. PMC update attempted on battery power (occasional)

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

Feature unavailable although license is enabled

Patient monitor does not display a feature even though the license is enabled in the system.

Ranked causes

1. Software package in use does not include the feature (common)

First check

Verify software package supports the feature

Test point: Webmin Configuration > Licenses > Software Package
Expected: Correct software package selected that includes desired feature

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

Module voltage out of specification

Supply voltage for acquisition modules or analog output voltage is out of specification

Ranked causes

1. Faulty acquisition or output module board (common)

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

Monitor battery requires conditioning

Condition monitor battery message shown on screen indicates electronic fuel gauge recalibration needed

Ranked causes

1. Electronic fuel gauge requires recalibration (common)

First check

Verify monitor is in discharged state before conditioning

Test point: Patient monitor power state
Expected: Monitor must be fully off before starting conditioning

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

PDM module advanced interface board failure

Advanced interface board fails to provide VSYS OPTION voltage for PDM connected to ePort.

Ranked causes

1. VSYS OPTION voltage out of specification (occasional)

First check

Measure VSYS OPTION voltage

Test point: Advanced interface board output (section 11.3.1)
Expected: VSYS OPTION voltage within specification
Tools: Webmin Hardware Statistics

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

PDM module CPU board failure

CPU board fails to manage Ethernet communication with PDM module.

Ranked causes

1. PDM communication error or CPU failure (occasional)

First check

Review PDM Log for communication errors

Test point: Webmin section 11.3.4 PDM Log
Expected: No PDM errors or communication failures logged

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

PDM module DC/DC board failure

DC/DC board fails to provide required system supply voltages for PDM module operation.

Ranked causes

1. System supply voltages out of specification (common)

First check

Measure VSYS voltage

Test point: Webmin Hardware Statistics
Expected: VSYS voltage within specification
Tools: Webmin Hardware Statistics

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

PDM module external ePort cable loose or defective

PDM module connected to ePort connector has loose or damaged external cable connection.

Ranked causes

1. External ePort cable loose or damaged (common)

First check

Inspect external ePort cable and connections

Test point: ePort cable and connectors
Expected: Cable intact with secure connections at PDM and advanced interface board

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

PDM module frame flex board faulty

Module frame flex board fails to distribute system supply voltages to PDM docking station.

Ranked causes

1. VSYS RACK and VSYS ePort voltages out of specification (common)

First check

Measure VSYS RACK voltage

Test point: Webmin Hardware Statistics section 11.3.1
Expected: VSYS RACK voltage within specification
Tools: Webmin Hardware Statistics

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

PDM module hinge flex board loose or faulty

Hinge flex board connecting PDM docking station has loose or damaged connections.

Ranked causes

1. Hinge flex board loose or improperly connected (common)

First check

Inspect hinge flex board integrity and mounting

Test point: Hinge flex board physical condition and connectors
Expected: Hinge flex board intact with proper connections to CPU and module frame

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

Power management failure: PMC communication failure high voltage

Message displayed when Power Management Controller communication fails

Ranked causes

1. PMC communication failure (unknown)

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

PSM module CPU board failure

CPU board EMBC section fails to manage RS-485 communication with PSM module.

Ranked causes

1. EMBC section failure or communication error (occasional)

First check

Review EMBC Frame logs for errors

Test point: Webmin section 11.3.4 EMBC logs
Expected: No EMBC failures or communication errors logged

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

PSM module DC/DC board failure

DC/DC board fails to provide +15VMOD supply voltage for PSM module operation.

Ranked causes

1. +15VMOD supply voltage out of specification (common)

First check

Measure +15VMOD supply voltage

Test point: Hardware statistics in Webmin section 11.3.1
Expected: +15VMOD voltage within specification
Tools: Webmin Hardware Statistics

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

PSM module frame flex board failure

Module frame flex board fails to distribute +15VMod PSM voltage to PSM module.

Ranked causes

1. +15VMod PSM voltage out of specification (common)

First check

Measure +15VMod PSM voltage

Test point: Hardware statistics in Webmin section 11.3.1
Expected: +15VMod PSM voltage within specification
Tools: Webmin Hardware Statistics

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

PSM module hinge flex board loose or faulty

Hinge flex board connecting PSM module to CPU board and module frame has loose or damaged connections.

Ranked causes

1. Hinge flex board loose or improperly connected (common)

First check

Inspect hinge flex board integrity and connections

Test point: Hinge flex board
Expected: Hinge flex board intact with proper connections to CPU and module frame

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

PSM module pole mount cable loose or faulty

Module Bus Adapter or connection cable for pole-mounted PSM module is loose or damaged.

Ranked causes

1. Module Bus Adapter or connection cable loose or damaged (common)

First check

Inspect pole mount cable and adapter

Test point: Module Bus Adapter and connection cable
Expected: Cable and adapter intact with secure connections at PSM module and patient monitor PSM connector

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

Recorder works but nothing appears on paper

Thermal paper recorder is operational but produces no visible output or markings on the paper.

Ranked causes

1. Paper installed upside down (common)

First check

Verify paper roll orientation

Test point: Paper installed in recorder
Expected: Active (thermal) side facing recording head; fingernail test produces dark line
Tools: Fingernail or writing implement

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

More symptoms

Secondary voltage LED not lit when monitor powered on
Service Monitor Error 0xHOST1004: Disk usage exceeds 90%
Service Monitor Error 0xHOST1100: CPU timekeeper battery needs replacement
Setting activation failed
Software activation failed
System time incorrect when connected to MC Network
System time incorrect when connected to S/5 network
Touchscreen operation inaccurate
Webmin application error
Wrong character displayed when key pressed on keyboard
Wrong software application displayed

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

Error codes

Code	Meaning	Trigger	Severity
`0xHOST1001`	Internal temperature out of specification	One or more internal temperature sensors detect temperature outside specification limits	warning
`0xHOST1002`	Internal supply voltage out of specification	One or more internal supply voltages detected outside specification limits	error
`0xHOST1004`	Disk usage exceeds 90%	Disk storage capacity usage reaches or exceeds 90%	warning
`0xHOST1100`	CPU timekeeper battery requires replacement	CPU timekeeper battery aged beyond recommended 5-year service life or battery depleted	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.