Protecting absorption refrigerators PCB
The last few years during the storm season I've been having issues with my refrigerator (Norcold N641) not working temporarily. At first I thought there was something wrong with the PCB as the frig...
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I had a similar issue with a thermostat - moisture would condense on the PCB and cause issues.
Clean any dirt/corrosion with isopropyl alcohol ("rubbing alcohol") and q-tips. Cover any connectors/contacts/switches with tape, then spray it with a clear spray paint. That was alluded to with the comments about coatings, but you don't need to go to the trouble of getting a proper electronics conformal coating - a couple of coats of clear spray paint from the hardware store will work fine.
Clean any dirt/corrosion with isopropyl alcohol ("rubbing alcohol") and q-tips. Cover any connectors/contacts/switches with tape, then spray it with a clear spray paint. That was alluded to with the comments about coatings, but you don't need to go to the trouble of getting a proper electronics conformal coating - a couple of coats of clear spray paint from the hardware store will work fine.
