The customer reported that the ventilator was alarming due to a blower temperature high occurrence.The customer reported the unit was in use on a patient and there was no patient harm.A prolonged blower temperature high occurrence may result in a vent inop during normal ventilation operation.Vent inop is a high priority condition that precludes safe operation of the ventilator.A vent inop alarm displays on the screen, turns on remote alarm interfaces, and disables oxygen flow and blower operation.The patient must be placed on another means of ventilatory support.The manufacturers field service engineer (fse) was unable to duplicate the reported problem.Review of the device diagnostic history noted the occurrence as reported.The fse replaced the blower and motor controller pcb board to address the findings and reported problem.Performance verification testing was completed per operating specifications and passed.
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