This mdr was generated under protocol b10010116, as a result of warning letter cms# 617147.A device history report (dhr) review was not applicable in this case because the defective component is not evaluated or tested in any way during the manufacturing process at this manufacturing site and the device manufacturing records are retained by the supplier at their manufacturing site and are not readily available for review.A product sample was received for evaluation.Visual and functional testing were performed.Received device in good condition with no physical damage.The technician filled water into reservoir tank, installed temperature check, installed f-30 gas vent filter onto air detector, which attached to filter holder interlock switch.The reported problem was confirmed by the technician.The root cause of the reported problem was found to be cracked return tube due to the design.The technician replaced main printer circuit board (pcb).
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