The customer reported a ventilator with a check vent alarm at power-up, as well as associated auxiliary power failure alarms, a 35-volt power failure, and a blower stalled alarm.The manufacturer's field service engineer confirmed the reported problem.This condition has been determined to have occurred prior to therapy.There was no allegation of harm associated with this event.The device was reported to have been swapped out for another without further report of any incident.The manufacturer's field service engineer replaced the power management printed circuit board assembly to address and correct this reported event.
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