Nick for Model Number FFTR1814QW3 Freezer is building up ice and fridge is not cooling. Someone told me that I need to replace the main control board and the temperature thermostat. Sure that this is problem? Is the temperature thermostat a separate part or is it with the control board? This refrigerator has one thermostat inside the freezer and other at the fridge. Which one should be replaced? Thanks
Answer Nick, You will want to test the defrost thermostat 5303918638 for continuity and test the defrost heater for a resistance of between 11 and 25 ohms. The thermostat should read continuity with it being below 15 degrees. If both are good then the control box 5304507171 would need to be replaced. Read More... Answered by AppliancePartsPros.com | Friday, April 23, 2021