The customer reported error codes saying blower stalled when the device was powered on.The errors were check vent: blower stalled or blower not running at required speeds, check vent: backup alarm failed, and check vent: aux alarm supply failed.There was no patient involvement.The customer spoke with a remote service engineer (rse) and confirmed.The errors were check vent: blower stalled or blower not running at required speeds, check vent: backup alarm failed, check vent: aux alarm supply failed, and check vent: 35 v supply failed in the error log.The rse advised to swap out the power management board or motor controller board to help diagnose the problem.The customer swapped the power management board and the issue was resolved.The customer requested onsite service for repair.
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