Went out to a service call on this refrigerator and it was not cooling, the compressor wasn’t running but the condenser fan motor was running. I unplugged the refrigerator, then removed the compressor start device relay and ohm tested it, my meter didn’t read any ohms on it, so it was bad. Normal would be between 3-12 ohms if it was good.
I then plugged the refrigerator in and took a voltage reading at the electrical connector that connects to the compressor start relay and it read 124 volts AC, so it was getting the correct voltage to it. I had a new compressor start relay in my truck and installed it and the compressor fired right up, and started cooling.
Here’s the compressor start device relay for this model:
WPW10197428 Compressor Start Device