This mdr was generated under protocol b10010116, as a result of warning letter cms# (b)(4).A product sample was received for evaluation.Visual and functional testing were performed.Physical observation revealed cracked and leaking tank cover, damaged printed circuit board (pcb), and faded line cord.Started with a visual inspection then filled tank with water, attached temp check, plugged in line cord, and turned on the power switch.The over temp alarm sounded right away.The membrane switch and all components plugged into the pcb were disconnected.The customer reported problem has been confirmed.The over temp alarm was out of calibration and the pots on the pcb used to calibrate and make adjustments were damaged.The root cause of the reported issue was found to be customer use.No action taken due to the age and condition of the device.It is deemed beyond economical repair and will be scrapped.No causes or potential causes of the customer's reported problem were found during the review of service and repair records.E4 is unknown.
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