C-arm fluoroscopy systems · 9800 CARM family

GE Healthcare C ARM: troubleshooting and error codes

The ServiceForge knowledge base holds 118 documented symptoms for the GE Healthcare C ARM, with 175 ranked causes, 118 diagnostic checks with test points and expected values, and 84 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Boot sequence stalls or fails during initialization

C-arm control panel 20-character display shows squares or arrows pattern that stops, indicating failure during boot process before reaching completion

Ranked causes

1. Hardware problem preventing IDE hard drive boot (occasional)
2. Operating system or software load failure (common)
3. ARCNet connection failure (common)
4. CMOS data corruption or battery failure (occasional)
5. Flash memory or file corruption (occasional)
6. Stator circuit failure (rare)
7. Precharge circuit failure (rare)
8. Filament drive circuit failure (rare)
9. Battery voltage low or battery failure (occasional)
10. Workstation boot failure or ARCNet communication loss (occasional)

First check

Observe boot pattern on control panel display

Test point: C-Arm control panel 20-character display
Expected: Five, ten, 15, 20 squares followed by arrow progression

20 more checks with pass and fail actions, 10 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Film Mode Performance Check failed radiation

C-Arm system fails Film Mode diagnostic test; specific failure mode must be identified from fault chart

Ranked causes

1. No anode whirring sound (unknown)
2. No X-RAY ON indicator light (unknown)
3. No beeps when footswitch pressed (unknown)
4. Exposure unsuitable (unknown)
5. Mechanical movement fault (unknown)

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

ARCNet communication failure between C-Arm and Workstation

Data pathway disruption or signal degradation on ARCNet bus affecting system control

Ranked causes

1. Fault on Fluoro Functions PCB ARCNet node (unknown)
2. Fault on X-Ray Controller PCB ARCNet node (unknown)
3. Fault on System Interface PCB Workstation node (unknown)
4. Interconnect cable defect or poor connection (unknown)

First check

Observe differential ARCNet signal using digital oscilloscope

Test point: ARCNet bus lines at PCB node
Expected: Clean differential signal per ARCNet specification
Tools: Digital oscilloscope

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

Hexadecimal display boot code indicates fatal error or memory fault

2-digit hexadecimal display on Fluoro Functions PCB shows FE (fatal error), 0D/FF (out of memory), E0/E4 (memory/stack warning), or E0,XX,FF (ARCNET transmit pipe full)

Ranked causes

1. Fatal error: stack overflow, no memory, or unhandled interrupt (rare)
2. System halted: out of memory condition (rare)
3. Stack memory dangerously low (occasional)
4. ARCNET transmit pipe temporarily full (occasional)

First check

Observe hex display codes during bootup sequence

Test point: Fluoro Functions PCB 2-digit hexadecimal display
Expected: Sequential codes 01-0A during initialization; display shows 01=Flash check, 02=Processor init, 03-05=Memory clear, 06=App init start, 07=Arch util init, 08=Network init, 09=Timers init, 0A=Tasks init

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

High Voltage Supply Regulator fault or shutdown high voltage

LEDs on HV Supply Regulator PCB show fault condition (FAULT LED lit, SHUTDOWN active, LOOP A failure, MA HIGH condition, or KV ramp abnormality)

Ranked causes

1. FAULT LATCH activated (rare)
2. Ground integrity failure (rare)
3. KV regulation loop failure (occasional)
4. KV ramp timing abnormality (occasional)

First check

Verify filament drive status on HV Supply Regulator PCB

Test point: HV Supply Regulator PCB: FILAMENT DRIVE OK LED
Expected: FILAMENT DRIVE OK LED ON under normal operation

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

AD CHANNEL # FAIL message displayed

System displays 'AD CHANNEL # FAIL' on C-Arm Control Panel indicating failure in specific analog-to-digital converter channel on X-Ray Controller PCB.

Ranked causes

1. A/D converter channel component failure (unknown)
2. A/D reference voltage U36 failure (unknown)
3. A/D data buffer U27 failure (unknown)

First check

Probe A/D channels on X-Ray Controller PCB

Test point: A/D converter input channels
Expected: Within valid signal range

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

Boot sequence failure

Workstation fails to boot or produces beeping sounds, interconnect cable not recognized, or green Battery light does not illuminate.

Ranked causes

1. Power supply or AC wall voltage issue (common)
2. Interconnect cable not properly connected (common)
3. C-Arm battery or internal electronics fault (occasional)

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

Data error

System displays DATA ERROR, indicating corruption in program memory, data storage, or system configuration

Ranked causes

1. Program area memory corruption (rare)
2. Data area memory corruption (rare)
3. Flash memory corrupted (rare)

First check

Identify which memory area is corrupted

Test point: Error data field 1 and 2
Expected: Specific corruption type indicated (0-13)

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

Generator Driver PCB fault during X-ray exposure high voltage

LEDs on Generator Driver PCB not lighting as expected during X-ray exposure or showing fault conditions (overload, saturation, timing faults)

Ranked causes

1. HV generator drive signal timing fault (rare)
2. Filament drive signal failure (occasional)
3. X-ray enable or shutdown circuit failure (occasional)

First check

Check Generator Driver PCB filament drive status before X-ray

Test point: Filament Driver PCB LED DS1
Expected: ON during 16-18 arrow bootup stage, OFF after bootup, ON at power-off then decay

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

Image out of focus

Image displayed on monitor is not in focus or appears blurry

Ranked causes

1. Image intensifier power supply problem (unknown)
2. Image intensifier tube problems (unknown)
3. CCD camera problem (unknown)

First check

Verify II and camera can be focused

Test point: II and camera focus control
Expected: Image comes into focus with adjustment

1 more check with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Interlock failure patient safety

System displays INTERLOCK FAILURE error, indicating the safety interlock system is not functioning properly

Ranked causes

1. Interlock solenoid failed to close (occasional)
2. Interlock stuck in closed position (occasional)
3. Interlock IO task missing from software (rare)

First check

Identify interlock failure type

Test point: Error data field 1
Expected: 0=failed to close; 1=already closed; 3=task missing

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

Lift switch stuck caution

C-Arm lift switch held ON for 30+ seconds; all generator functions inhibited until key pressed

Ranked causes

1. C-Arm lift switch held in ON position (occasional)
2. Object pressing on lift switch (occasional)
3. Faulty lift switch (occasional)

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

No click heard when Interconnect cable unplugged from C-Arm

Audible relay click not heard when disconnecting cable from C-arm unit

Ranked causes

1. Workstation not plugged into wall receptacle (common)
2. Receptacle not powered - fuse blown or circuit breaker tripped (common)
3. Incorrect voltage Workstation connected to wrong outlet (occasional)

First check

Verify wall outlet is powered

Test point: Wall receptacle where Workstation plugged in
Expected: AC voltage present (100-125V or 200-250V as rated)
Tools: Multimeter or AC outlet tester

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

No click heard when Workstation plugged into AC power high voltage

Audible relay click not heard when connecting Workstation to AC power

Ranked causes

1. Voltage mismatch - 100-125V unit plugged into 200-250V outlet (common)
2. Circuit breaker CB1 or CB2 tripped (common)
3. Outlet power off or facility breaker tripped (common)

First check

Verify outlet has AC power

Test point: Wall receptacle
Expected: AC voltage present at outlet
Tools: Multimeter or outlet tester

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

Workstation totally inoperative high voltage

No power, lights, or response; unit does not function at all

Ranked causes

1. Power and interconnect cables not connected or faulty (common)
2. Voltage mismatch - wrong outlet voltage (common)
3. Isolation Transformer strapped incorrectly (occasional)

First check

Verify power cord connection and outlet power

Test point: Power cord connector and wall outlet
Expected: Cord fully seated; outlet has AC voltage
Tools: Multimeter, visual inspection

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

X-ray image not appearing on monitor radiation

After pressing X-ray on switch, no digitized fluoro image appears on left monitor or image disappears immediately after exposure.

Ranked causes

1. X-ray generation not initiating (common)
2. Image intensifier or detector fault (occasional)
3. Image acquisition or display system malfunction (occasional)

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

X-RAY SWITCH SECURITY ERROR displayed

System displays error when mismatch occurs between Security line on footswitch or handswitch and Security line on matching connector.

Ranked causes

1. Footswitch incorrect wiring (unknown)
2. Handswitch incorrect wiring (unknown)
3. X-Ray Controller PCB fault (unknown)

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

X-RAY SWITCH STUCK message displayed

System displays error and shuts down when X-ray control (Left or Right) is detected in ON state during startup, indicating switch being held down or internal fault.

Ranked causes

1. Footswitch or handswitch held down during startup (occasional)
2. Footswitch or handswitch requires service (occasional)
3. Internal fault in X-ray control circuit (occasional)

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

All indicators did not illuminate; error message appears

System front panel indicator squares and arrows fail to light; error message displayed on screen

Ranked causes

1. Interlock or control logic failure (unknown)
2. Boot or startup sequence error (unknown)

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

Battery Charger light did not turn on

Battery charger indicator light remains off; no charging indicator displayed

Ranked causes

1. Interconnect cable problem (common)
2. Connector loose or corroded (common)

First check

Visually inspect Interconnect cable for damage

Test point: Cable entire length and connectors
Expected: No visible damage, kinks, cuts, or corrosion
Tools: Visual inspection

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

Filament driver overcurrent or saturation fault high voltage

Overload Fault or Saturation Fault LED on Generator Driver PCB lit, indicating filament drive circuit malfunction or excessive current draw

Ranked causes

1. Filament drive circuit overload (occasional)
2. Filament drive transistor saturation or control circuit fault (occasional)

First check

Observe Overload Fault and Saturation Fault LEDs during normal operation

Test point: Generator Driver PCB: Overload Fault LED, Saturation Fault LED
Expected: Both LEDs OFF during normal X-ray exposure and idle

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

Housing overheating caution

System displays HOUSING IS HOT, HOUSING IS WARM, or HOUSING OVERHEATED error, indicating internal temperature approaching or exceeding safe limits

Ranked causes

1. Internal heat accumulation due to sustained X-ray exposure (common)
2. Cooling fan malfunction (occasional)

First check

Monitor housing temperature percentage

Test point: Control panel display
Expected: Percentage of capacity shown

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

Irregularities when field size changes

Image control anomalies occur during field size adjustment in fluoro mode

Ranked causes

1. Control Panel Processor PCB failure (common)
2. Fluoro Functions PCB failure (common)

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

Key switch in standby position caution

X-ray disable keyswitch turned on (vertical); prevents vertical column movement and X-ray generation; X-rays and lift disabled

Ranked causes

1. X-ray disable keyswitch in ON position (common)
2. Keyswitch or associated hardware fault (occasional)

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

No image on monitor

Monitor displays no image output from the C-arm system

Ranked causes

2. Bad CCD camera (common)
3. Bad monitor (occasional)

First check

Verify kV tracking to nominal level

Test point: kV output
Expected: 120

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

Video abnormalities, artifacts, or drop-outs

Video signal exhibits artifacts, abnormalities, or intermittent drop-outs in image

Ranked causes

1. CCD Camera failure (common)
2. Fluoro Functions PCB failure (occasional)

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

WARNING LOW MA displayed patient safety

System displays 'WARNING LOW MA - PRESS ANY KEY' message on C-Arm Control Panel when actual mA output is lower than display shows and not within tolerance. Results in poor image quality.

Ranked causes

1. Filament drive circuitry fault (unknown)
2. mA Sense circuitry fault (unknown)

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

24 hour recharge required caution

System displays 24 HOUR RECHARGE REQUIRED – X-RAYS DISABLED, indicating battery charge is critically low and system requires extended charging

Ranked causes

1. Battery discharged below safe operating level (common)

First check

Monitor battery charge status during extended charging

Test point: Battery voltage and charge indicator
Expected: Battery voltage gradually rising during 24-hour period

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

4 hour warm up required caution

System displays 4 HOUR WARM UP REQUIRED on control panel, indicating stator/rotor requires warm-up period before high-power operation

Ranked causes

1. System powered on after extended shutdown requiring thermal stabilization (common)

First check

Monitor warm-up timer

Test point: Control panel display
Expected: Timer counts down from 4 hours to zero

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

AD channel measurement failure caution

System reports AD CHANNEL FAIL error on control panel display, indicating analog-to-digital conversion failure on specified channel

Ranked causes

1. Analog-to-digital converter malfunction on specified channel (common)

First check

Verify channel number from error message

Test point: Control panel display
Expected: Channel number displayed in error message

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

Anode overheating radiation

System displays ANODE IS HOT or ANODE IS WARM error on control panel, indicating X-ray tube anode temperature approaching or exceeding safe limits

Ranked causes

1. Anode thermal capacity exceeded or approaching limit (common)

First check

Monitor anode heat capacity percentage

Test point: Control panel display
Expected: Percentage of capacity below safe threshold

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

ARCNET communications failure

Control panel button pushes do not cause intended changes on workstation; ARCNET network communications failure

Ranked causes

1. Fluoro Functions PCB failure (common)

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

Battery charge below minimum caution

System displays BATTERY CHARGE - ##% error on control panel, indicating battery state of charge is insufficient for operation

Ranked causes

1. Battery discharged below minimum operating level (common)

First check

Monitor battery charge percentage

Test point: Control panel display or error log
Expected: Percentage of capacity shown

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

Boot sequence takes longer than normal

System takes considerably longer than 80-120 seconds to complete bootup sequence

Ranked causes

1. Systems with WJ98 or later software require 128 Meg RAM instead of 64 Meg (common)

First check

Verify system software version and required RAM configuration

Test point: SBC memory configuration
Expected: 128 Meg RAM for WJ98+ software, 64 Meg for earlier versions

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

Bright pixels present in image

Camera cooler failure causes bright pixels in image due to offset correction failure

Ranked causes

1. Camera Cooler failure (common)

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

Calibration: Film mode exposure radiation

Verify film mode X-ray exposure at 60 kVp @ 2.5 mAs produces acceptable image on developed film cassette

Ranked causes

1. System calibration verification required (unknown)

First check

Listen for anode acceleration whirring sound before X-ray indicator

Test point: X-ray switch indicator and audio output
Expected: Whirring sound approximately 2 seconds before indicator illuminates
Tools: Footswitch

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

Calibration: Mechanical brake operation

Verify Wig-Wag and Flip Flop brake engagement prevents unwanted movement

Ranked causes

1. Brake system calibration verification (unknown)

First check

Test Wig-Wag brake prevents movement

Test point: Wig-Wag arm with brake engaged
Expected: No Wig-Wag movement when brake is engaged

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

Camera iris mechanism failure caution

System displays CAMERA IRIS FAILURE error, indicating iris control mechanism is malfunctioning

Ranked causes

1. Iris control mechanism stuck or damaged (occasional)

First check

Determine iris position state from error data

Test point: Error message data field 1
Expected: 0 = open state; 1 = closed state

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

CCD camera rotation binds or exhibits jerky motion

Camera rotation shows binding or jerky motion during operation

Ranked causes

1. Fluoro Functions PCB failure (common)

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

Charger failure caution

System displays CHARGER FAILED or CHARGER FAILED with shutdown, indicating battery charger circuit malfunction

Ranked causes

1. Battery charging circuit failure (common)

First check

Measure battery voltage via inverter

Test point: Inverter B A/D
Expected: Within charging specification

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

Collimation failure radiation

Collimator jaws fail to open/close or position incorrectly; X-ray field size uncontrollable

Ranked causes

1. Collimator motor, solenoid, or control circuit failure (unknown)

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

Collimator calibration required caution

System displays COLLIMATOR CAL REQUIRED error on control panel, indicating collimator leaves or iris needs recalibration

Ranked causes

1. Collimator leaf or iris position drift out of calibration (occasional)

First check

Identify which component requires calibration

Test point: Error data field 1
Expected: 0 = Leaves; 1 = Iris; 2 = Leaves and Iris

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

Collimator iris potentiometer error caution

System displays COLL IRIS POTENTIOMETER ERROR, indicating the iris position feedback sensor is malfunctioning

Ranked causes

1. Iris potentiometer sensor failure or connection issue (common)

First check

Check potentiometer output reading

Test point: Pot reading from error message
Expected: Reading outside normal range or erratic

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

Collimator iris too large caution

System displays COLL IRIS TOO LARGE error, indicating iris opening exceeds maximum safe aperture

Ranked causes

1. Iris potentiometer reading indicates opening beyond specification (occasional)

First check

Check iris potentiometer reading

Test point: Pot reading from error
Expected: Reading above maximum aperture threshold

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

Collimator iris unstable caution

System displays COLL IRIS UNSTABLE error, indicating collimator iris position is drifting or fluctuating

Ranked causes

1. Collimator iris motor or potentiometer malfunction (occasional)

First check

Check iris potentiometer reading

Test point: Pot reading from error data
Expected: Stable reading within specification

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

Collimator movements are jerky or sticky

Collimator exhibits sticky or jerky motion during operation

Ranked causes

1. Collimator lubrication insufficient (common)

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

Collimator or camera motor not responding

Camera iris, optics, collimator leaves or iris functions fail to operate

Ranked causes

1. Fluoro Functions PCB fault affecting motor control (common)

First check

Measure +24VDC supply to II power supply at J7

Test point: J7 pins 15-8
Expected: +24VDC

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

Collimator stuck caution

System displays COLLIMATOR STUCK error, indicating collimator leaves cannot move to commanded position

Ranked causes

1. Collimator leaf mechanical jam or motor failure (common)

First check

Monitor potentiometer reading

Test point: Pot reading during leaf movement attempt
Expected: Reading changes when motor is commanded

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

Communication failure

System displays COMMUNICATION FAILED error, indicating loss of communications between system components

Ranked causes

1. Communication bus error or component disconnection (occasional)

First check

Verify system startup completes

Test point: Control panel displays
Expected: System initializes without error

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

Control panel error

System displays CONTROL PANEL ERROR on display, indicating control panel microprocessor or interface failure

Ranked causes

1. Control panel microprocessor or communications interface failure (rare)

First check

Verify control panel responsiveness

Test point: Control panel buttons and display
Expected: Display shows message and accepts input

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

Control panel key stuck caution

System senses key closure during boot-up; possible stuck key detected

Ranked causes

1. Control panel key stuck or object pressing key (occasional)

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

Dark images with low pulse rate

Pulse rates less than 4 pps produce dark images due to failure of integrating data over multiple frame times; auto brightness stabilization incorrect

Ranked causes

1. Camera control failure (Manchester Encoder/Decoder) (common)

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

Error message displayed during bootup

Error message appears on C-Arm Control Panel after boot sequence completion

Ranked causes

1. Hardware problem preventing IDE hard drive software load (occasional)

First check

Observe boot display pattern on 20-character control panel

Test point: C-Arm Control Panel display
Expected: Five squares, ten squares, 15 squares, 20 squares pattern, then arrows

Fast stop activated caution

System displays FAST STOP ACTIVATED and powers down, indicating emergency shutdown was triggered

Ranked causes

1. Emergency stop button pressed or safety condition detected (unknown)

First check

Check high voltage register

Test point: High Voltage Input Register
Expected: HV present at time of fast stop

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

Field size selection failure

Image intensifier field size control unresponsive or produces incorrect zoom levels

Ranked causes

1. Image intensifier tube or power supply control malfunction (unknown)

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

Filament calibration required caution

System displays FILAMENT CAL REQUIRED error on control panel, indicating filament characteristics need recalibration

Ranked causes

1. Filament parameters drift out of calibration (occasional)

First check

Run filament calibration procedure

Test point: Generator control system
Expected: Calibration completes without error

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

Filament regulator failure high voltage

System displays FILAMENT REGULATOR FAILED error, indicating filament voltage regulation circuit is malfunctioning

Ranked causes

1. Filament voltage regulation circuit failure (common)

First check

Measure filament voltage

Test point: Filament supply output
Expected: Measured filament voltage from error data

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

Filament select error caution

System displays FILAMENT SELECT ERROR, indicating incorrect filament is selected or filament selection circuit failure

Ranked causes

1. Filament selector switch or control circuit failure (occasional)

First check

Check which filament is selected

Test point: Error data field 1
Expected: 0 = Small filament; 1 = Large filament

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

Fluoro Functions PCB microcontroller not running

LED segment 6 on DS1/DS2 does not blink at 1 Hz after bootup, indicating microcontroller startup failure or crash

Ranked causes

1. Microcontroller initialization failure (unknown)

First check

Observe LED segment 6 on DS1 blinking after power-up

Test point: DS1 LED segment 6
Expected: Blink at 1 Hz during bootup and after

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

Fluoro mode performance check failed patient safety

System fluoro mode performance test did not pass; image quality, exposure, or mode parameters out of spec

Ranked causes

1. One or more fluoro subsystem parameter out of specification (unknown)

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

More symptoms

Footswitch security error
Generator filament calibration running
High kV warning
High kVp warning
High mA warning
High voltage generator error
High voltage generator unexpected on
High voltage register failure at startup
High-level fluoroscopy overtime
HV register failure
Image brightness and contrast not compensating with added filtration
Image quality unacceptable in fluoroscopy
Image rotation or reversal in fluoroscopy
Key stuck
Key switch in standby
KV turned on in error
Low dose ABS table loading
Low kV warning
Low kVp warning
Low mA warning
mA sense on without X-ray switch
mA sensor failure
mA turned on in error
No click heard when Interconnect cable plugged into C-Arm
No fluoroscopy image output
Overload fault
Overvoltage fault
Performance check: Image quality unacceptable
Performance check: No Fluoro image
Power Supply PS2 output voltage incorrect
Pre-charge voltage error
Precharge circuit timeout
Precharge voltage error
Room door open
Saturation fault
Standard ABS table loading
Stator not on
Stator standby wait
System processing in progress
System shuts down unexpectedly without error message
Temperature sensor failure
Vascular mode control failure
Verify ARCNet signal integrity at nodes
Workstation beeps and does not boot when switched on
X-ray control released early in film mode
X-ray Controller PCB initialization failure
X-ray overtime
X-RAY OVERTIME message displayed
X-ray room door open
X-ray switch security failure
X-ray switch stuck
X-ray tube anode not powered
X-ray tube current on without control
X-ray tube housing at elevated temperature
X-ray tube housing at warm temperature
X-ray tube housing overheated
X-RAY TUBE TEMPERATURE SENSOR FAILURE displayed
X-rays disabled

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

Error codes

Code	Meaning	Trigger	Severity
`24 HOUR RECHARGE REQUIRED`	Battery charge critically low; system requires 24-hour recharge cycle	Battery voltage below minimum safe operating level	error
`24-HOUR RECHARGE REQUIRED - X RAYS DISABLED`	Battery charge depleted after long-term storage	C-Arm batteries depleted; typically after six months or more storage	warning
`4 HOUR WARM UP REQUIRED`	Stator and tube require 4-hour warm-up before full-power operation	System powered on after extended shutdown	warning
`4-HOUR WARM-UP REQUIRED - PRESS ANY KEY`	System inactive for more than 60 days; ion removal from Image Intensifier required	System has been inactive for more than 60 days	warning
`AD CHANNEL # FAIL`	Analog-to-digital converter channel failure	A/D channel functional test failure at startup or during operation	error
`AD CHANNEL %s FAIL`	Analog-to-digital conversion failure on specified channel	A/D converter unable to process signal from specified channel	error
`AD CHANNEL %s FAIL – POWER OFF – WAIT 5 SECONDS`	Analog to digital converter channel failure	AD converter channel malfunction detected	error
`AD CHANNEL %s FAIL – POWER OFF. WAIT 5 SECONDS`	Analog-to-digital channel failure at startup	A/D channel fails during system start-up	critical
`ANODE IS HOT`	X-ray tube anode is at high temperature near safe limit	Anode heat accumulation from sustained X-ray exposure	warning
`ANODE IS HOT`	Anode heat unit capacity critical	Anode heat units reach critical level approaching maximum capacity	critical
`ANODE IS HOT - XX%`	X-ray tube anode at 80% or greater of rated capacity	X-ray tube reaches 80% (+2%) of rated thermal capacity	error
`ANODE IS WARM`	X-ray tube anode is at elevated temperature but safe	Anode heat accumulation approaching high threshold	warning
`ANODE IS WARM`	Anode heat unit capacity elevated	Anode heat units elevated but not at critical level	warning
`ANODE IS WARM - XX%`	X-ray tube anode at 70% of rated capacity; warning only	X-ray tube reaches 70% (+2%) of rated thermal capacity	warning
`BATTERY CHARGE - ##%`	Battery state of charge below minimum safe level	Battery voltage drops below minimum operating threshold	error
`BATTERY CHARGE - XX%`	Battery charge between 70% and 40% of required level	C-Arm battery charge drops to 70%-40% range	warning
`BATTERY CHARGE - XX% /WAIT`	Battery charge below 40% of required level; limited functionality	C-Arm battery charge drops below 40% of required charge	warning
`CAMERA IRIS FAILURE`	Camera iris mechanism failure	Camera iris motor or sensor malfunction	warning
`CHARGER FAILED`	Battery charging circuit is malfunctioning	Charger unable to deliver proper charge voltage or current	error
`CHARGER FAILED`	Battery charger failure detected during bootup	Battery charger malfunction at system startup	error
`COLLIMATOR CAL REQUIRED`	Collimator leaves or iris require position recalibration	Collimator position feedback drift out of tolerance	error
`COLLIMATOR CAL REQUIRED - PRESS ANY KEY`	Collimator iris and leaf position values do not match stored reference values	Collimator position values drift from stored reference values in memory	critical
`COLLIMATOR STUCK`	Collimator iris motor cannot open or close iris	Collimator iris motor mechanical failure or jam	error
`COLL IRIS POTENTIOMETER ERROR`	Iris position feedback potentiometer is malfunctioning	Potentiometer output outside expected range or erratic	error
`COLL IRIS POTENTIOMETER ERROR - PRESS ANY KEY`	Collimator iris position potentiometer failure or disconnection	Position potentiometer on collimator not working or disconnected	critical
`COLL IRIS TOO LARGE`	Collimator iris aperture larger than displayed value on control panel	Collimator iris aperture size exceeds indicated value	warning
`COLL IRIS UNSTABLE`	Collimator iris motor cannot maintain position tolerance	Collimator iris motor position instability, typically jittery operation	warning
`COMMUNICATION FAILED`	Workstation and C-Arm communication loss for more than one second	No communication between Workstation and C-Arm exceeds one-second timeout; Watchdog circuit triggers	critical
`COMMUNICATION FAILED`	Communication between system components lost	Data transmission error on system communication bus	error
`CONTROL PANEL ERROR`	System cannot communicate with C-Arm Control Panels	Loss of communication between generator and control panels	critical
`CONTROL PANEL ERROR`	Control panel microprocessor or interface failure	Panel processor malfunction or bus error	error
`CONTROL PANEL KEY STUCK - RELEASE, THEN PRESS ANY KEY TO CON`	C-Arm Control Panel key stuck in pressed position at bootup	Control panel key mechanically stuck or electrically held at bootup	critical
`DATA ERROR`	System detects invalid data in memory or processing	Invalid ABS table write/read, corrupted non-volatile memory, or software malfunction	critical
`DATA ERROR`	System memory or flash storage contains corrupted data	Memory CRC check failure or data range error	error
`FAST STOP ACTIVATED`	Emergency shutdown was triggered	Emergency stop button pressed or safety condition detected	warning
`FAST STOP ACTIVATED – POWER OFF. WAIT 5 SECONDS.`	Interlocks opened; fast stop switch activated	FAST STOP switch pressed on front of C-Arm Control Panel or interlock circuit opened	error
`FILAMENT CAL REQUIRED`	Filament characteristics require recalibration	Filament parameters drift beyond acceptable tolerance	error
`FILAMENT CAL REQUIRED - PRESS ANY KEY`	Filament calibration not performed since system startup or software update	Software detects missing or expired filament calibration at startup	error
`FILAMENT REGULATOR FAILED`	Filament voltage regulation circuit has failed	Filament regulator unable to maintain set voltage	error
`FILAMENT REGULATOR FAILURE - PRESS ANY KEY`	X-ray tube filament current out of tolerance	Filament current measurement exceeds tolerance limits	error
`FILAMENT SELECT ERROR`	Incorrect filament selected or filament selector failure	Mismatch between commanded and actual filament	error
`FILAMENT SELECT ERROR - PRESS ANY KEY`	Selected filament size in software does not match filament in PIO hardware	Filament selection mismatch between software and hardware configuration	error
`FILAMENT STANDBY`	Filament in standby mode	Filament heater energized but X-ray production not active	info
`FLUORO ALARM`	Fluoroscopy alarm condition triggered	Fluoroscopy mode parameter or time limit exceeded	warning
`HLF OVERTIME`	High-level fluoroscopy overtime condition detected	Prolonged high-level fluoroscopy operation	warning
`HLF OVERTIME`	Generator operating in overtime mode	Generator heat limit exceeded during operation	warning
`HLF OVERTIME (digital cine)`	High-level fluoroscopy overtime during cine acquisition	Prolonged high-speed recording mode exceeds overtime limit	warning
`HOUSING IS HOT`	Generator internal housing at elevated temperature	Internal component temperature high due to X-ray exposure	warning
`HOUSING OVERHEATED`	Generator internal housing at or above maximum safe temperature	Internal temperature exceeds maximum safe threshold	error
`HOUSING WARM`	Generator internal housing at elevated but safe temperature	Internal temperature high but below maximum limit	warning
`HV GENERATOR ON`	High voltage power supply is active when it should be off	Unintended HV output or control failure	error
`HV REGISTER FAIL`	High voltage monitoring register has failed	HV register cannot be read or written	error
`INTERLOCK FAILURE`	Safety interlock system is not functioning properly	Interlock solenoid, latch, or sensor malfunction	critical
`KEY STUCK`	A physical control button or key is mechanically stuck	Button does not return to normal position after depression	error
`KEY SWITCH IN STANDBY`	Key switch is in standby position disabling system operation	Key switch manually set to standby by operator	info
`KV ON IN ERROR`	Kilovoltage became active unexpectedly	Unintended kV supply activation	critical
`LIFT SWITCH STUCK`	Vertical positioning switch is mechanically stuck	Lift control switch cannot change state	error
`MA ON IN ERROR`	Tube current became active when it should be off	Unintended tube current activation	critical
`MA SENSOR FAIL`	Tube current measurement sensor is malfunctioning	mA sensor output out of range or erratic	error
`OVERLOAD FAULT`	Electrical load or power consumption exceeds safe limit	Power draw exceeds system capacity	error
`OVERVOLTAGE FAULT`	High voltage supply exceeds maximum safe level	HV regulator failure allowing excessive output	critical
`PLEASE WAIT`	System is performing initialization or processing operation	System startup or internal operation in progress	info
`PRECHARGE CIRCUIT TIMEOUT`	HV power supply cannot charge to operating voltage within timeout period	Precharge circuit failure or insufficient battery voltage	error
`PRE-CHARGE VOLTAGE ERROR`	Battery inverter voltage insufficient for HV power supply precharge	Inverter B battery voltage below precharge threshold	error
`PRE-CHARGE VOLTAGE ERROR – POWER OFF`	Pre-charge inverter voltage error	Inverter pre-charge voltage out of specification	error
`RELEASED EARLY`	X-ray exposure terminated before expected completion	Operator released exposure button early	info
`ROOM DOOR OPEN`	Procedure room safety door is open	Room door sensor indicates open state	warning
`SATURATION FAULT`	Power supply or transformer has reached magnetic saturation	Excessive current through transformer core	error
`STATOR NOT ON`	X-ray tube rotor/stator motor is not running	Stator motor failed to start or power lost to motor	error
`STATOR STANDBY`	Stator motor is in standby state and not rotating	System standby mode or motor disabled during initialization	info
`TEMP. SENSOR FAIL`	Temperature measurement sensor is malfunctioning	Temperature sensor output out of range	error
`WARNING – HIGH kV`	Measured kilovoltage exceeds desired setpoint	kV regulation failure or setpoint error	warning
`WARNING, HIGH MA`	Measured tube current exceeds desired setpoint	mA regulation failure or setpoint error	warning
`WARNING – LOW kV`	Measured kilovoltage is below desired setpoint	kV supply unable to achieve setpoint	warning
`WARNING, LOW MA`	Measured tube current is below desired setpoint	mA supply unable to reach setpoint	warning
`WARNING LOW MA`	Actual mA output lower than displayed value and not within tolerance	mA output falls below expected range during operation	warning
`X-RAY OVERTIME`	Film shot exposure time exceeded required duration	Exposure continues beyond required time limit	warning
`XRAY OVERTIME`	Cumulative daily X-ray exposure has exceeded safe limit	Total exposure time exceeds daily maximum	error
`XRAYS DISABLED`	X-ray output has been disabled by safety system	Safety interlock engaged or control system failure	warning
`X-RAY SWITCH SECURITY ERROR`	Mismatch between Security line on footswitch/handswitch and connector	Security line signal mismatch detected	error
`X-RAY SWITCH SECURITY FAILURE`	X-ray enable switch security check has failed	X-ray switch state does not match expected control signal	error
`X-RAY SWITCH STUCK`	X-ray enable switch cannot change from current state	Switch solenoid or mechanical latch unable to move	error
`X-RAY SWITCH STUCK`	X-ray control switch detected in ON state during system startup	Left or Right X-ray control switch held ON at startup	error
`X-RAY TUBE TEMPERATURE SENSOR FAILURE`	X-ray tube temperature thermistor fails functional testing at startup	Thermistor functional test failure during system initialization	critical

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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.