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What This Guide Helps With
Troubleshooting one bed section that will not move due to power, lockouts, controls, obstructions, connections, positioning, or a service-level motion fault.
Step-by-Step Troubleshooting
1. Protect the Patient and Maintain Continuity of Care
Do not troubleshoot unreliable bed movement while a patient depends on the affected section for positioning, therapy, airway management, or fall prevention.
Notify clinical staff and determine whether the patient must be transferred to another verified bed. Support the mattress platform and patient as clinically appropriate if the section is stuck in an unsafe position. Do not place hands, tools, cables, linens, or equipment near moving linkages.
Expected outcome: The patient is protected, and troubleshooting can proceed without creating a pinch, fall, or positioning hazard.
If safe patient positioning cannot be maintained, remove the bed from clinical use and stop troubleshooting.
2. Confirm the Exact Motion Failure
Identify which section is affected:
- Head section
- Knee section
- Foot section
- More than one section
Test the function from each available authorized control location, such as the caregiver controls and patient controls, while the bed is unoccupied or safely supported. Observe whether the section is completely inactive, moves intermittently, moves in only one direction, or produces sound without movement.
Expected outcome: The failure is narrowed to a specific section, direction, and control location.
If the section operates normally from another control location, troubleshoot the nonresponsive control rather than the actuator.
3. Verify AC Power and Basic Bed Operation
Confirm that the bed power cord is fully connected to a functioning approved receptacle. Inspect the plug and cord for damage, overheating, contamination, or loose strain relief.
Verify that the bed powers normally and test another unrelated powered function.
Expected outcome: The bed has stable power and other powered functions operate normally.
If restoring power corrects the motion problem, perform final functional verification and troubleshooting can stop.
4. Check Motion Lockouts and Control Status
Inspect caregiver controls for an active lockout affecting the head, knee, foot, or patient controls. Verify that the intended function is enabled using normal authorized controls.
Do not enter restricted service menus or change unrelated configuration settings.
Expected outcome: The affected motion is enabled and no lockout indicator remains active.
If clearing an unintended lockout restores normal motion, verify operation from applicable controls and troubleshooting can stop.
5. Inspect for Mechanical Obstruction or Excess Loading
Inspect beneath and around the mattress platform for:
- Linens caught in the frame
- Cables, tubing, or accessories routed through moving sections
- Equipment contacting the frame
- Damaged or displaced mattress retainers
- Objects stored beneath the bed
- Wall, furniture, or floor contact
- Uneven loading or an accessory interfering with movement
Do not force the section or manually pry the linkage.
Expected outcome: The affected section has a clear travel path and is not externally restrained.
If removing an obstruction restores full movement, inspect for damage, complete functional testing, and troubleshooting can stop.
6. Compare Control Sources
Operate the affected section from the caregiver control, patient control, and any approved pendant fitted to the bed.
Determine whether:
- All controls fail for the same section
- Only one control location fails
- One direction works but the opposite direction does not
Expected outcome: The failure is isolated to the motion system or to a specific external control source.
If the actuator works consistently from another control, inspect the failed control, pendant, or external cable and stop actuator-focused troubleshooting.
7. Inspect Accessible Actuator Wiring and Connections
Disconnect AC power and follow facility procedures before inspecting accessible wiring.
Visually inspect accessible actuator cables, connectors, and harness routing for:
- Loose or partially seated connectors
- Pinched or stretched cables
- Abrasion or cuts
- Liquid contamination
- Bent connector shells
- Evidence of impact or frame damage
Reseat only clearly accessible connectors intended for routine service access. Do not open the actuator or controller enclosure.
Expected outcome: External actuator wiring is secure, undamaged, and correctly routed.
If securing an accessible connection restores operation, perform repeated movement testing and troubleshooting can stop.
8. Test Under Safe, Unloaded Conditions
With the bed unoccupied and clear of obstructions, operate the affected section through a safe range of travel.
Listen for clicking, grinding, repeated stopping, abnormal motor noise, or movement that is uneven or jerky. Stop immediately if the frame binds or the actuator appears mechanically unstable.
Expected outcome: The section moves smoothly in both directions without abnormal sound, delay, or binding.
Normal unloaded movement followed by failure under ordinary loading requires service-level evaluation and should not be considered resolved.
9. Compare With a Known-Good Control or Accessory When Applicable
When the bed uses a removable approved control or pendant, test with a compatible known-good accessory according to facility procedures.
Do not interchange actuators, control modules, or internal components as an external troubleshooting step.
Expected outcome: A known-good external control either restores motion or confirms that the fault remains within the bed.
If the known-good control restores reliable operation, replace the defective accessory, verify all functions, and troubleshooting can stop.
10. Complete Final Functional Verification
After any correction, test the head, knee, and foot sections from applicable caregiver and patient controls. Verify both directions, lockout operation, smooth movement, cable clearance, and safe stopping.
Inspect the frame and mattress platform for interference after movement.
Expected outcome: All intended bed sections move reliably, lockouts operate correctly, and no abnormal condition remains.
The bed may return to service only after the affected function passes complete functional verification.
If the Problem Persists
Common external causes such as power loss, lockouts, control selection, obstructions, accessories, and accessible connections have been ruled out.
The remaining cause may involve an actuator, position feedback device, motion-control circuit, internal harness, mechanical linkage, controller configuration, or another service-level fault.
The bed should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation
- Evaluated using appropriate Stryker documentation and approved test equipment
- Repaired or configured only by qualified personnel
Do not continue cycling a stalled or noisy actuator. Do not open sealed actuator assemblies or perform board-level repair. Following service, complete electrical safety testing when applicable and full bed-function verification before return to service.
Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Transfer the patient before troubleshooting a section that cannot maintain safe positioning or may move unexpectedly.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Nursing reported that the head section would not raise from either the patient or caregiver controls."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found an unintended head-motion lockout active on the caregiver control panel."
Resolution
What action was taken.
Example:
"Cleared the lockout and verified smooth head, knee, and foot movement in both directions from all applicable controls."
Helpful Details to Include (If Known)
- Affected bed section and direction
- Patient or caregiver control used
- Lockout indicators observed
- AC and battery operating condition
- Other bed functions tested
- Obstructions or accessories found
- Accessible connector condition
- Abnormal sounds or binding
- Results with a known-good control
- Final functional test results
- Final device status
Final Thought
Protect the patient first, verify controls and external causes before assuming actuator failure, stop when movement is unsafe, escalate appropriately, and document the complaint, cause, correction, and final verification clearly.
That is successful troubleshooting.