Norcold Fridge not getting cold on electric (deeper dive)

[paparoscoe909]

Hey everyone. Just wanted to say thanks to everyone that provided insight and knowledge to possible reason that my fridge was not working on electricity. I had it in a local campsite this weekend for troubleshooting and general repairs on other things. I am pleased to report that the frig did work fine on AC this time. Had my doubts because the divider plate in the freezer got rather warm to the touch and the weird smell was there. Ultimately it did cool down and the smell disappeared. The freezer was staying around 0* and the frig around 36*. Don't know what was going on the first time. Maybe just plain user error and/or not being level enough and on an undersized extension cord from the house. Either way feeling cautiously relieved at this point. Once again thanks for all of the help.

 

[Brad Buchanan]

Hi everyone,
Having trouble with a Norcold N7XF not working on electricity but it works like a champ on LP. The RV is a 2018 and recently new to me so I can't tell you what has been done to it in the past. The standard troubleshooting has identified no issues. Incoming power and all fuses are good. Heater has 47.5 Ohms and is receiving a 120v from the control board. Operator interface panel stays green like it should. Only thing is that it doesn't get cold. I have noticed there seems to be an embedded divider heater in the schematic that has me questioning the purpose of it and if it is possibly competing with the cooling heater. I do seem to get a burning electrical smell in the freezer more so than in the fridge but can't pinpoint the source or locate a hot spot. Any thoughts on what might be going on with this fridge or experiences with a similar problem would be appreciated. Would hate to be stuck on LP forever with this unit.

Probably not factory approved but I would probably just slide the element out of the vertical tube and see if it heats up on a/c and then work backwards.