Daniel K Long Beach , CA November 26, 2014 Appliance: Roper Refrigerator RT18ECRFW00 Roper Refrigerator Rt18ecrfw00: Compressor kept turning on and off (every 5 secs or so) or ran too long freezing the fridge section. How to replace Refrigerator Temperature Control Thermostat. Just replaced the thermostat. Didn't have remove anything from the fridge to access it. Hardest part of the install was wire was run under the defrost timer and had to remove that to remove the thermostat. Defrost timer was held in place by 1 way clips which were a pain to take out. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes