G4:08mar2021.B4:13mar2021.The field service engineer (fse) performed periodic maintenance.The reported issue was unable to be confirmed by an operational check performed.Since the backup alarm failed error was confirmed in the event log, the central processing unit board that had a backup alarm function was replaced by the fse to prevent a recurrence.The issue is resolved.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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