Answer Hello James. The first part you would want to check is your thermostat. If this part fails, the unit will not get the signal to the compressor telling it to turn off. You may also want to find your condensor coils (usually on the back or bottom of the appliance) and make sure those are clean. I hope this info helps. Read More... Answered by AppliancePartsPros.com | Saturday, June 4, 2011