CT scanners

GE Healthcare ProSpeed: troubleshooting and error codes

The ServiceForge knowledge base holds 8 documented symptoms for the GE Healthcare ProSpeed, with 20 ranked causes, 26 diagnostic checks with test points and expected values, and 3 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

X-ray exposure error light and warning sound radiation

X-ray exposure lamp lights and beeping warning sound occurs when Scan Set switch is pressed (Zj Series) or Confirm button clicked on SCAN Display (XM1500 Series); however X-ray tube does not actually expose X-rays

Ranked causes

1. HVON LED trouble at KV Control Board (common)
2. Bad filament cable connection (common)
3. X-ray tube filament failure (occasional)
4. Motherboard to OBC board connection failure (occasional)

First check

Verify HVON LED status on KV Control Board

Test point: HVON LED indicator on KV Control Board
Expected: LED off when HV is not ready; LED on when HV is ready

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

X-ray exposure warning activates without exposure radiation

X-RAY Exposure lamp lights and warning sound beeps when Scan Set switch pressed (Zj Series) or Confirm clicked on SCAN Display (XM1500 Series), but X-ray tube does not actually emit radiation.

Ranked causes

1. HVON LED lit on KV Control Board without HV ready (common)
2. Bad filament cable connection (common)
3. X-ray tube filament failure (occasional)
4. MOTHER Board to OBC Board connection failure (occasional)

First check

Verify HVON LED status on KV Control Board

Test point: HVON LED on KV Control Board
Expected: LED off until HV is fully ready

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

X-ray exposure warning light and beeping (Zj Series) radiation

After pressing 'Scan Set' switch and seeing 'Scan Set' blink, the X-ray exposure lamp illuminates and beeping warning sound occurs.

Ranked causes

1. HVON LED trouble at KV Control Board - LED lights without HV ready (common)
2. Bad filament cable connection (common)
3. Melted X-ray tube filament (occasional)
4. Loose motherboard to OBC board connections (occasional)

First check

Inspect filament cable connections

Test point: Filament cable connectors
Expected: Secure connection with no corrosion or looseness

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

X-ray exposure error with warning light and sound radiation

When operator initiates scan (Zj Series: pushes Scan Set switch after Scan Set blink; XM1500 Series: clicks Confirm on SCAN Display), X-ray exposure lamp illuminates and beeping warning sound activates. X-ray tube does not actually expose X-rays.

Ranked causes

1. HVON LED trouble at KV Control Board (common)
2. High voltage not ready during HVON signal (common)

First check

Inspect filament cable connection at KV Control Board

Test point: Filament cable connector
Expected: Secure connection with no corrosion

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

X-ray exposure warning light and sound on Zj Series radiation

After pressing 'Scan Set' switch and seeing 'Scan Set' blink, the 'X-RAY Exposure lamp' lights on with a beeping warning sound

Ranked causes

1. HVON LED trouble at KV Control Board (common)
2. HV not ready for exposure (common)

First check

Verify HVON LED status on KV Control Board

Test point: KV Control Board HVON LED
Expected: LED should be off when HV is not ready

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

X-ray exposure warning light on XM1500 Series radiation

When clicking 'Confirm' on the SCAN Display, the 'X-RAY Exposure lamp' lights on

Ranked causes

1. HVON LED trouble at KV Control Board (common)
2. HV not ready for exposure (common)

First check

Verify HVON LED status on KV Control Board

Test point: KV Control Board HVON LED
Expected: LED should be off when HV is not ready

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

X-ray exposure warning light (XM1500 Series) radiation

After clicking 'Confirm' on the SCAN Display, the X-ray exposure lamp illuminates.

Ranked causes

1. HVON LED trouble at KV Control Board - LED lights without HV ready (common)

First check

Inspect filament cable connections

Test point: Filament cable connectors
Expected: Secure connection with no corrosion or looseness

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

X-ray tube does not expose radiation during scan radiation

Despite X-ray exposure warning light and sound activation, X-ray tube does not produce X-ray exposure when scanning initiated

Ranked causes

1. High voltage supply not ready (common)

First check

Verify HV supply ready status

Test point: HV ready indicator on KV Control Board
Expected: HV ready signal present before scan initiation

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

Error codes

Code	Meaning	Trigger	Severity
`X-RAY Exposure`	X-ray exposure warning activated without actual X-ray emission	HVON LED on KV Control Board lighting without HV ready condition	error
`X-RAY Exposure Error`	X-ray exposure lamp illuminates with audible warning; indicates HV supply is not ready despite activation signal	HVON LED lights on KV Control Board without HV ready condition	error
`X-ray Exposure Warning`	X-ray exposure lamp lights and warning beep sounds; no actual X-ray emission occurs	HVON LED illuminates without HV being ready for exposure	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.