Jeff E Tecumseh , OK September 03, 2017 Appliance: Electrolux Freezer LFFH20F3QWC Electrolux Freezer Lffh20f3qwc: The temperature control thermostat was not working. How to replace Temperature Control Thermostat. I replaced the thermostat, re-assembled the evaporator cover and performed operational check. The unit is working fine now. Advised the customer. 79 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes