Fridge isn't cooling and has ice build-up. How do I fix it?
We have a GE Monogram Refrigerator model ZFSB25DTG SS. Not sure how old it is, it came with the house and we moved in a few weeks ago.
The fridge initially wasn't getting below 45 degrees (set to 37) and the freezer was at about 5 (set to 0). After a few days I did some poking around and discovered a lot of ice completely clogging what I think are the evaporator coils at the bottom of the fridge (behind the fresh food drawers). There was also a small amount of ice built up on the back of the freezer, but I didn't dismantle anything in the freezer.
After unplugging the fridge and letting it defrost overnight the temperature was perfect (freezer and fridge) for nearly two weeks, but then jumped back up again, and of course the ice had returned. Defrosted it again (with a hair dryer this time) and it OK for now, but I obviously need a more permanent fix.
From what I've read it sounds like it's probably a problem with the defrost system, but I can't find any specific information for this model of fridge, so I'm not exactly sure how to proceed. Can anyone give me some direction?
Top freezer, bottom fridge (can't remove styrofoam due to ice, so can only see bottom two coils).
Fridge seems to be a lot more iced up than freezer if you can see all the white behind the two coils.