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What This Guide Helps With
Troubleshoot power connection damage, optional accessory outlet problems, grounding concerns, or electrical safety test failures using approved external checks.
Step-by-Step Troubleshooting
1. Ensure Patient Safety and Remove Electrical Hazards
Determine whether the bed is occupied or connected to other patient-care equipment.
If there is evidence of electrical damage, exposed conductors, overheating, smoke, unusual odor, or suspected shock, stop use immediately.
Coordinate safe patient transfer and disconnect power only when doing so will not create an additional clinical hazard.
Do not reconnect equipment with suspected electrical damage.
Expected outcome: Patients and staff are protected from potential electrical hazards.
2. Confirm the Exact Electrical Complaint
Identify whether the reported issue involves:
- Damaged power cord or plug
- Intermittent AC power
- Optional accessory outlet failure
- Protective earth continuity failure
- Chassis or enclosure leakage test failure
- Another electrical safety test result
Record the original measured values and test conditions when available.
Expected outcome: The specific electrical failure is documented before further testing.
3. Inspect the Power Cord and Plug
With the bed safely disconnected from AC power, inspect the full accessible cord length.
Look for cuts, crushed insulation, exposed conductors, damaged strain relief, bent plug blades, or discoloration.
Inspect the plug's grounding contact.
Do not use electrical tape or improvised repairs to return a damaged power cord to service.
Expected outcome: The cord and plug are free of visible electrical or mechanical damage.
4. Inspect the Bed's Accessible Power Entry Area
Examine the external power entry and cord attachment area for looseness, contamination, heat damage, or visible defects.
Do not remove electrical covers or expose internal wiring during routine external troubleshooting.
If damage is found, stop and arrange authorized repair.
Expected outcome: No visible damage is present at accessible power entry components.
5. Verify the AC Outlet
Use an approved outlet tester or electrical safety analyzer appropriate for the installation.
Verify that the outlet is suitable for the bed and meets applicable facility electrical requirements.
If the outlet fails, notify the responsible facilities or electrical team.
Do not modify building wiring.
Expected outcome: The bed's supply outlet is verified as suitable and properly grounded.
6. Evaluate the Optional Accessory Outlet
Confirm whether the bed has a manufacturer-approved accessory outlet.
If equipped, inspect the outlet for visible damage or contamination.
Verify its intended operating conditions and approved load requirements using the applicable Stryker documentation.
Test only with approved equipment and methods.
Do not bypass outlet protection or connect an unapproved load.
Expected outcome: The accessory outlet, if installed, operates within its documented requirements.
7. Perform Protective Earth Continuity Testing
Use a calibrated electrical safety analyzer and the applicable manufacturer and facility testing procedure.
Verify protective earth continuity using the specified test points and acceptance criteria.
If the result fails, confirm the test setup and analyzer connections before concluding that the bed has an internal fault.
Do not bypass or defeat protective grounding.
Expected outcome: Protective earth continuity meets the applicable acceptance criteria.
8. Perform Applicable Leakage Current Testing
Using approved test equipment, perform the required leakage current tests for the bed's electrical classification and installed configuration.
Follow the applicable Stryker service documentation, facility procedure, and governing electrical safety standard.
Record actual measured values and the corresponding acceptance criteria.
Do not invent limits or substitute unrelated device specifications.
Expected outcome: All applicable leakage measurements meet the required criteria.
9. Isolate External Test Influences
If a measurement fails, verify the analyzer setup, test leads, power connection, and selected test configuration.
Identify connected accessories that may affect the result.
Disconnect or substitute external accessories only when permitted by the applicable test procedure.
Repeat the test under the documented configuration.
Expected outcome: The measurement accurately represents the bed and its approved test configuration.
10. Complete Final Electrical and Functional Verification
After correcting an external issue or completing authorized repair, repeat all applicable electrical safety tests.
Verify normal AC operation, powered positioning, controls, and optional accessory outlet operation.
Document the final results.
If all required electrical and functional tests pass, troubleshooting can stop and the bed may be returned to service through the facility's approved process.
Expected outcome: The bed meets applicable electrical safety and functional requirements.
If the Problem Persists
External cord condition, outlet integrity, analyzer setup, accessible connections, and permitted accessory influences have been checked.
Remaining causes may include protective earth bonding defects, internal power distribution, insulation deterioration, accessory outlet circuitry, or other electrical faults.
Remove the bed from service, label it Out of Service, and arrange qualified repair or bench evaluation.
Evaluate the bed using applicable Stryker service documentation, calibrated electrical safety equipment, and approved facility procedures.
Electrical repairs and component replacement must be performed by qualified personnel.
Do not return the bed to clinical service until all required electrical safety and functional tests pass.
Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
A bed that powers on and moves normally can still fail protective grounding or leakage testing; functional operation alone does not establish electrical safety.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported that the Secure II bed power cord had visible damage near the plug."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found damaged cord insulation and strain relief at the plug end."
Resolution
What action was taken.
Example:
"Removed the bed from service, replaced the cord using the approved Stryker procedure, and verified protective earth continuity, applicable leakage tests, and normal powered operation before return to service."
Helpful Details to Include (If Known)
- Exact electrical complaint
- Power cord and plug condition
- Power entry inspection findings
- Outlet verification results
- Installed accessory outlet configuration
- Electrical safety analyzer identification
- Test procedure and configuration
- Protective earth measurement
- Leakage current measurements
- Applicable acceptance criteria
- Connected accessories during testing
- Corrective action performed
- Final electrical safety results
- Final functional verification
- Return-to-service status
Final Thought
Electrical safety failures require careful verification and a clear stopping point. Protect the patient, inspect external power components, confirm the test setup, and verify measurements before assuming internal failure. Escalate unresolved electrical defects, complete required safety testing, and document all findings and corrective actions.
That is successful troubleshooting.