Leslie M Canonsburg , PA July 21, 2020 Appliance: Whirlpool Side By Side Refrigerator ED27PQXFN02 Whirlpool Refrigerator Ed27pqxfn02: Would not cool. How to replace Defrost Thermostat. Replaced the relay start and the defrost thermostat. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes