The biomedical engineer (bme) called technical support to report that the device was not staying in standby.The remote service engineer (rse) informed the bme that the latest version of the service manual is version t, advised the bme of a possible flow sensor problem, and provided the bme with the part number of the replacement flow sensor assembly for repair.Additionally, the rse advised the customer to complete preventive maintenance (pm) and test the device for the correct air flow specifications.Per initial good faith effort (gfe) response, the bme stated that the ventilator simply would not go into standby mode, and the mask self-test would fail each time-- this was not the case for the other devices.The bme ultimately ordered the flow sensor assembly for repair/replacement.Per follow-up gfe response, the bme performed the flow sensor assembly replacement and verified that the issue was resolved.The device passed the required performance verification tests per philips standard and was returned to service.The investigation concludes that no further action is required at this time.If additional information is received, the complaint file will be reopened.
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