Plant investigation: the power logic board and actuator board was returned to the manufacturer for physical evaluation.A visual inspection of the returned part showed no sign of physical damage.The received power logic board was installed onto a test machine.The machine powered on with a fail long pulse failure code.The failure was due to a shorted transistor (t4).The t4 was replaced with a known good transistor and a self-test was performed.There were no alarms or issues encountered during power up and the self-test passed without any issue or problem.The actuator board was returned and a visual inspection revealed a damaged j1 connected.The received actuator board was installed into a test machine.The test machine failed to power on.The failure was due to shorted capacitors and ic chip (c96, 95, and ic18).Tracing damaged was encountered.The tracing damage was due to shorted components and was unable to be repaired.A records review was performed on the reported serial number.An investigation of the device manufacturing records was conducted by the manufacturer.There were no non-conformances, or any associated rework identified during the manufacturing process which could be related to the reported event.In addition, the device history record (dhr) review confirmed the results of the in-progress and final quality control (qc) testing met all requirements.Upon completion of the evaluation, the reported issue was confirmed and the cause was determined to be an internal shorts on components on the power logic board and actuator board.The cycler was refurbished following the evaluation.
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