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Model
What This Guide Helps With
The system reports cooling, fan, or temperature problems caused by blocked airflow, room conditions, facility cooling, external contamination, or service-level cooling faults.
Step-by-Step Troubleshooting
1. Protect the Patient and Stop Treatment if Required
If the system reports an overtemperature or cooling fault that affects safe operation, discontinue treatment according to departmental procedures.
Do not continue operating overheating equipment merely because treatment can still be initiated.
Expected outcome: The patient is safe and the equipment is not operated under an unresolved thermal fault.
2. Confirm the Thermal Complaint
Record the exact displayed message and determine whether the fault appears at startup, during idle operation, during imaging, or during treatment activity.
Check for unusual fan noise, odor, heat, or repeated shutdown.
Expected outcome: The thermal condition and its operating context are clearly documented.
3. Check Room Temperature and HVAC
Determine whether the treatment room and equipment spaces appear normally conditioned and whether building HVAC is functioning.
Check for recent HVAC alarms, maintenance, or room temperature changes.
Expected outcome: The equipment is operating in a normally conditioned environment or a facility HVAC problem is identified.
4. Inspect Accessible Airflow Paths
Check accessible ventilation openings, external filters intended for routine inspection, and surrounding clearances for dust buildup, blocked airflow, stored items, or coverings.
Do not open internal enclosures for fan servicing unless authorized.
Expected outcome: External airflow paths are clear.
5. Listen for Accessible Fan Operation
From outside the equipment, note whether expected cooling fans appear to be operating and whether there is abnormal grinding, rattling, surging, or absence of airflow.
Expected outcome: External observations do not indicate an obvious cooling failure. Any abnormal fan behavior supports removal from service and escalation.
6. Check for External Heat Sources
Verify that portable heaters, temporary equipment, blocked returns, direct sunlight, relocated cabinets, or other external changes are not increasing equipment temperature.
Expected outcome: No external heat source is contributing to the condition.
7. Allow Approved Cool-Down if Appropriate
If permitted by site and manufacturer procedures, allow the equipment to cool while powered down or placed in the appropriate safe state.
Do not repeatedly restart equipment that immediately returns to an overtemperature condition.
Expected outcome: A transient environmental condition clears without recurrence.
8. Verify Operation After Correction
If an external airflow or environmental cause was corrected, restart using the approved procedure and monitor the system through an appropriate nonclinical functional check.
Expected outcome: No cooling or overtemperature fault returns and system operation remains stable.
9. Escalate Recurring or Unexplained Thermal Faults
If the fault returns, a fan sounds abnormal, equipment remains unusually hot, or no external cause is identified, stop troubleshooting.
Expected outcome: The Versa HD remains out of service until the thermal problem is evaluated by qualified service personnel.
If the Problem Persists
External environmental and airflow causes have been ruled out. Remaining possibilities may include internal fans, coolant circulation, temperature sensing, heat exchangers, power components, internal airflow, control electronics, or other service-level cooling faults.
The Versa HD should be:
- Removed from service.
- Labeled Out of Service.
- Sent for qualified repair or service evaluation.
- Evaluated using appropriate Elekta documentation and approved test equipment.
- Repaired only by qualified personnel.
After repair, verify cooling performance and all affected treatment and imaging functions before return to clinical service.
Knowing when to stop external troubleshooting and escalate is proper troubleshooting.
Clinical Use Tip
A recurring temperature fault should never be cleared solely by repeated restarts; reliable cooling must be demonstrated before treatment resumes.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Radiation Oncology reported that the Versa HD displayed a cooling fault and would not remain treatment ready."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found an accessible ventilation path obstructed by equipment stored against the system enclosure."
Resolution
What action was taken.
Example:
"Clinical Engineering removed the obstruction, allowed the system to cool, completed an approved restart, and verified stable operation without recurrence before return to service."
Helpful Details to Include (If Known)
- Exact temperature or cooling message
- When the fault occurred
- Room HVAC condition
- Accessible airflow condition
- Fan sound or airflow observations
- Unusual heat or odor
- Recent room changes
- Whether shutdown occurred
- Results after cool-down
- Final system status
Final Thought
Treat thermal faults as equipment-protection and patient-safety concerns. Verify room conditions and external airflow first, but stop and escalate quickly when abnormal fan operation, heat, or recurring faults remain unexplained.
That is successful troubleshooting.