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What This Guide Helps With
Troubleshoots unresponsive user controls caused by startup state, contamination, loose peripherals, connections, software state, or localized hardware failure.
Step-by-Step Troubleshooting
1. Protect the Patient and Maintain Control of Imaging
If required controls become unresponsive during clinical use, stop using the affected interface and transfer imaging to another verified system if reliable control cannot be maintained.
Expected outcome: The procedure does not depend on an unresponsive control interface.
2. Confirm Which Interface Is Affected
Determine whether the touchscreen, keyboard, individual buttons, or the entire control panel is affected. Check whether the display itself is frozen or whether only touch input has stopped responding.
Expected outcome: The failure is isolated to a specific input device or identified as a broader workstation problem.
3. Verify the System Has Completed Startup
Ensure the workstation and C-arm are fully started and not still initializing. Observe whether status indicators, clocks, image displays, or other screen elements continue to update.
Expected outcome: The system is either operating normally apart from the input device or confirmed to be generally frozen.
4. Inspect for Contamination or Physical Interference
Inspect the touchscreen, keyboard, and control panel for fluids, residue, drapes, tape, objects resting on controls, stuck keys, or visible damage. Clean only with approved methods.
Expected outcome: Controls are unobstructed, clean, and free to operate normally.
5. Check Accessible Peripheral Connections
If the affected keyboard or control device uses an accessible external connection, verify it is fully seated and undamaged. Do not disconnect internal or concealed wiring.
Expected outcome: External input-device connections are intact.
6. Compare Other Input Methods
Test another available control method. For example, determine whether touchscreen functions can be selected with another approved interface or whether hardware controls continue working when the touchscreen does not.
Expected outcome: The problem is isolated to one interface or confirmed as a broader workstation control failure.
7. Perform a Controlled Restart
If patient care is not dependent on the system, perform one normal shutdown and restart after checking external causes.
Expected outcome: The interface initializes normally and remains responsive after startup.
8. Verify Repeated Control Response
Test representative user controls several times, including controls associated with imaging workflow but without unnecessary radiation generation.
Expected outcome: Inputs respond consistently without freezing, delayed response, or unintended activation.
9. Verify Overall Workstation Operation
Confirm displays update, menus respond, system communication remains available, and there are no recurring control failures after correction.
Expected outcome: The workstation operates normally and the affected input is reliable. Troubleshooting can stop.
10. Escalate Persistent Interface Failure
If the interface remains unresponsive, freezes again, produces unintended selections, or requires repeated restarts, remove the system from service.
Expected outcome: An unreliable control interface is not returned to clinical use.
If the Problem Persists
External obstruction, contamination, accessible connections, startup state, and alternate controls have been checked. Remaining possibilities may include touchscreen hardware, keyboard electronics, control-panel hardware, workstation software, internal interfaces, or another service-level condition.
Remove the OEC Elite from service, label it Out of Service, and send it for repair or bench evaluation. Use approved GE Healthcare documentation and test equipment. Do not attempt unauthorized software changes or internal control-panel repair.
Return to service only after all required input controls operate consistently and applicable imaging and safety functions are verified. Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
A control that intermittently freezes or activates the wrong function should be treated as unreliable even if it begins responding again after a restart.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported that the workstation keyboard stopped responding while the touchscreen remained functional."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the external keyboard connection partially disengaged."
Resolution
What action was taken.
Example:
"The connection was secured and repeated keyboard, touchscreen, and workstation functional checks confirmed normal response."
Helpful Details to Include (If Known)
- Interface affected
- Whether display remained active
- Contamination or obstruction found
- Visible physical damage
- Peripheral connection condition
- Alternate input method result
- Whether restart restored operation
- Recurrence during testing
- Workstation communication status
- Final device status
Final Thought
Maintain reliable control of the imaging system, isolate the affected interface, and check simple physical and connection causes before assuming a workstation failure. Require consistent response before return to service and document the complaint, cause, and verified resolution.
That is successful troubleshooting.