Level of DifficultyEasy
Time to do repair1- 2 hours
Age of ApplianceMore than 10 years
It was fairly easy to replace the thermostat. Unplug the refrigerator first. Then remove the refrigertor light bulb and 3 screws on the plastic cover that houses the thermostat and defrost timer. Unplug the thermostat from the wiring on the refrigerator and remove the plastic housing holding the thermostat. Remove two screws holding the thermostat and replace with the new one. Put everything back together in reverse order. Unfortunately, this did not corrrect my problem. The refrigerator is well over 30 years old and I had narrowed down the problem to the thermostat because the old one was hard to turn to adjust. About 10 years ago, I replaced the defrost heater in the rear of the freezer compartment for the same problem, and didn't think that would be the problem this time. Well, as it turned out, I checked the resistance on the defrost heater and it was was bad again. I replaced the heater this week I got from PartSelect, and the refrigerator cycles fine now. Replacing the heater is a little more work that changing the thermostat. You have to remove the freezer compartment fan, fan vent, and back inside wall of the freezer section to expose the coils and the heater element. You just need a socket screw driver. Then you have to reach inside and unplug each end of the heater to check it with your ohm meter. A bad element will show up as an open circuit. Then to replace it, you have to maneuver it around to get if away from the coils and remove a couple of clips. Anyone with some common sense can do it, but it can be a bit challenging.