G4:30dec2020.B4: 04jan2021.A philips field service engineer (fse) was dispatched to the customer site.The fse confirmed the reported allegation, and observed multiple check vent alarms.The fse replaced the central processing unit printed circuit board assembly (cpu pcba),power management printed circuit board assembly (pm pcba), motor control printed circuit board assembly (mc pcba) to resolve the issue and bring the device back to functionality.The removed cpu pcba, pm pcba, mc pcba were returned for analysis.A failure investigation (fi) technician installed the cpu pcba, pm pcba, mc pcba into a fi ventilator to verify and test the functionality.The reported issue was verified.The cpu pcba, pm pcba were found to have no faults and the root cause of the issue was revealed to be crack of the mc pcba c202 capacitor.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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