I tested it on a non-GFI and then forced it into the defrost cycle, no problem the defrost heater gets hot immediately. Only problem leaving it that way is the non-GFI outlet is a drop from the ceiling in the middle of the garage and I had to use a heavy duty extension cord. I'll probably end up adding a dedicated outlet for the fridge in the garage, but I'm really curious as to whether the defrost heater is supposed to have continuity from the terminals to the outer casing. I tried calling a local appliance parts place to see I could bring a multimeter and test one before buying it but they said no.
No it should be compleatly open from the terminals to the outer casing. As you can see many techs would have dismissed the GFCI as the problem, where the heater is your main problem. Good catch!! The GFCI was jus doing the job it was designed to do.
According the the 2014 NEC (national electric code) all recepicles in the garage need to be GFCI. It would be best to check with your local miniciple code office to fine out for sure before replacing any GFCI or AFCI recepicles.
- Samurai Appliance Repair Man likes this