Other, other text: this remediation mdr was generated under protocol (b)(4), as a result of warning letter cms# (b)(4).A manufacturing device history record (dhr) review was not performed because the results of the complaint investigation do not indicate a problem with the manufacture of the device.No causes or potential causes of the customer's reported problem were found during the review of service and repair records.A sample was received to perform an investigation.A visual inspection of the returned warmer found wear and tear damaged enclosure, tank cover, front cover, and line cord.Event history log review was not applicable.Functional testing was performed by filling the reservoir with water, attaching the temperature check to hotline, plugging in the line cord, and turning on the power switch to perform safety/electrical test.Tried to adjust the printed circuit board (pcb) but it was not accepting adjustments.The reported problem was due to a faulty pcb.The root cause was unable to be determined.Replaced the pcb.
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