Date of event and udi number is unknown, no information has been provided to date.One (1) device was received.Visual inspected noted an outdated printed circuit board (pcb) and power switch.Filled tank with water, attached temp check, plugged in line cord, and turned on the power switch.The disposable alarm is intermittent confirming the customer complaint.The root cause was the micro switch which triggers that alarm is bent.A manufacturing device history record (dhr) review was not performed because there was no indication of a manufacturing defect during the investigation.Service history review identified this device has not been in for service previously.No action taken due to the age and condition of the device.It is deemed beyond economical repair and will be scrapped.
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