B3.Date of event: unknown.No information has been provided to date.D5.Other operator of device: operator of device is unknown.D9.Date returned to mfg: unknown.No information has been provided to date.H3.Reason device not evaluated by mfg: other; device was not returned to manufacturer.Investigation summary: the affected device was received for investigation, with a marked-up enclosure and faded pole clamp.After visual inspection, the water tank was filled with water, the temp check disposable was attached, the line cord was plugged in, and the power switch was turned on.The over temp alarm had no led light or audible alarm, confirming the customer's indicated failure.The root cause was determined to be a faulty pcb.As a result, the pcb and reservoir gasket were replaced, and the enclosure was cleaned of marks and scratches.A review of the device history record (dhr) shows there were no observations or nonconformities recorded during manufacture to suggest an issue of this nature would occur with this lot of products.
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