Date rec'd by mfr: 22feb2019.The manufacturer¿s technical services (ts) confirmed the reported issue.Check vent codes 3.3 v supply failed -1117, mc pcba adc failed-111d, 35 v supply failed-111b, ovp circuit failed -1127, 5 v supply failed-1118 were identified.The customer was advised to replace the blower and to swap this (power management) pm pcba into another unit to gauge if it is bad out of stock.If the pm pcba is good when placed into another unit to replace the (motor controller) mc with a known good mc pcba.The customer replaced the defective motor controller board to address the reported problem.The unit successfully passed the required performance verification test.Submission of a report does not constitute an admission that medical personnel, user facility, importer, distributor, manufacturer, or product caused or contributed to the event.
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