The field service technician (fst) was onsite.The fst replaced the exchange tube, heater sealed, cleaned device board.Function and diagnostic and inspection performed.The most probable root cause is a water damage due to a leakage at the heater.Thus the failure could be confirmed.Since the reported failure did not contribute to a death or serious injury no corrective action is needed.In addition at this time it cannot be concluded that this is a systemic error.No corrective action is needed.The data is also being handled through a designated maquet cardiopulmonary trending and applicable investigation process.Due to this no further investigation initiations will be completed at this time.(b)(4).
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