On your model# it shows that compressor start relay has been discontinued, they have a relay/overload kit for yours here: Relay and Overload Kit 819100I too have a Kenmore refrigerator,(side by side 106.9555980) with a suspected replay problem. It doesn't always start up & as a result it cools down. Yesterday, it was too warm so I did some investigation without success. The compressor was hot & not starting. It seems that sometimes the compressor fails to start & the thermal overload kicks off. Sometimes, it starts correctly. Based on what I read here, I checked the relay with a ohm meter, both terminals are closed (not sure how it disconnects). The capacitor seems good, an ohm meter across the terminals jumps to infinity & the immediately drops to zero. Reversing the leads gets the same result. The coils were really dirty, I've cleaned those. If you just plug in the fridge, it'll start up but if you play with the thermostat up & down, it kicks off with the thermal overload & won't restart until it cools off. I suspect it's not always starting up. Once it starts, the compressor will run until it reaches the set temperature. Can the relay be at fault here or is the compressor going bad ? Thanks.