My GE fridge's temp has been fluctuating for some time now from 32-44 degrees in the fridge side. I have so far replaced the defrost heater and the defrost thermostat and it only helped for a few hrs. The evaporator fan, i've noticed is running almost non-stop and i wasn't hearing the hum of the compressor so I pulled the fridge out and unplugged to have a look. The compressor was too hot to touch for more than a few seconds. After it cooled, when I checked it with an ohm meter, the readings were all over the place. The two bottom pins would fluctuate from 4-124. It actually fluctuated the same when with the common pin. I did a scratch test and there was no reading. Any help with what it means when you can't get a solid reading would be appreciated. Is the compressor shot and I need to go get a new fridge?

TY. It is frosting up on only the lower 1/3 of the coils. I went today and picked out a new fridge so I hope this one can hold out until it arrives in a few days. Earlier it wasn't cooling at all so i unplugged it for a bit and it's been on since. *fingers crossed*