I have the following problem.

The freezer will not Stay cold. It will get cold, but then warms up. The refrigerator follows. Eventually, it cools again, but I am not sure of the interval. I’ve only been keeping detailed records for the last 16 hours.

Here as plot of temperature over time.

Time Freezer Temp(F) Fridge Temp(F)
Midnight 0 37
8:00 am 32 42
11:00am 37 45
1:00pm 40 48

at 2:00pm I moved the freezer temp control all the way to the right(coldest). I heard the compressor come on and the freezer started to cool.

3:00pm 16 (falling) 47

Over the last 16 hours the freezer has ranged from -8 to 46 deg F.

I replaced the Start-Device (2212194) before these measurements were taken. Behavior seem the same as before the starter was replaced.

Is it the Freezer Thermostat or The control unit or something else? How can I tell? What measurements can I make?

I have the wiring diagram but am not sure were to start or what to look for.

I the time It has taken me to type, the Freezer temp has fallen to 12 deg F. ;)

Thanks in Advance.
Paul
　
　
　

Thank You Denman.

I replace the Freezer thermostat 2 weeks ago. So far so good. The Freezer never goes above +20 (defrost cycle) and usually hangs around 0.

$50 vs $1500(new fridge). Nice. Thanks Again.

:) :) :) :)