Freezer randomly goes up form 5 F to 24 F, stays at 24F for 24 to 36 hrs. then goes back down to 4-5 F. Compressor is only hot during the draw down of the temperature - as hot as 138.
You will want to check the condenser fan motor to make sure that it is running. Make sure that the condenser coils at the top are clean. You will want to test the thermistors in the unit. The resistance of the thermistors should be 42.2k ohms at 0 degrees, 14.4K ohms at 37 degrees and 5K ohms at room temp of 77 degrees. If not within range then replace the thermistor.
Fridge light does not go on when door is opened. I replaced the door switch, but that didn't help. Everything else works OK, the temp indicators, door alarm, etc. all work OK. Just all the lights in the fridge section don't come on. Suggestions?
Answer Rob, There are a few more components to check, since the issue is in the fresh food compartment, you've solved some of the problem. There is a TOD device WR50X10035, is located on the back wall of the fresh food compartment,at the base of the light tower. If the TOD has an open circuit, the lights won't illuminate. Two re-settable, 2-amp circuit breakers are located on the front of the transformer housing. Should a circuit breaker trip (open), it will open the transformer circuit it is associated with (freezer compartment or fresh food compartment), disabling that transformer and stopping voltage output to the interior lights. Transformers WR62X10029 Power is supplied to all interior lighting by 2 transformers. One transformer is used for each compartment. The transformers supply low voltage
power to the lights by converting 120 VAC into 12 VAC. The transformers are located in a housing under the center of the refrigerator. The housing is accessible from the front of the refrigerator. To access the transformers, remove the 1/4-in hex head screws (6) that hold the housing in place. Since you've replaced the door switch, you'll need to check these other components to determine the issue.