Customer Questions and Answers for Refrigerator Defrost Timer by Whirlpool

Hello Joe, Either the defrost thermostat R0161088 is bad or the start device on the compressor has failed. If there is a frost build-up on the back wall of the freezer compartment, the defrost thermostat is the most likely cause. If there is no frost build-up, the compressor should be checked. It will vibrate if you put your hand on it if it is running. Sometimes, the condenser fan motor has to be unplugged to be able to tell if the compressor is running or not. If the compressor isn't running, remove the start relay WP10097202 from the side of the compressor and shake it. If it rattles, it has failed.