Customer Questions and Answers for Cold Control by Frigidaire

Hello Bill, If there is a frosty build-up on the rear freezer wall you will need to locate the defrost timer in the fresh food ceiling and advance it manually by turning it clockwise until a loud click is heard. This should energize the defrost circuit so it can be troubleshot. By the time you get the rear freezer wall out the defrost heater should be heated up. If so, replace the defrost timer 215846602 if voltage is getting to the number 1 terminal from the temperature control. If not, the temperature control has likely failed. If voltage is being passed to the defrost circuit but the heater is not heating up, the most common cause is a failed defrost thermostat 5303918202. A defrost failure such as this is common and is the likely cause of temperatures in both compartments to be affected. Be sure to completely defrost the unit with a hair dryer since the defrost circuit is only designed to clear normal frost build-up between cycles. If not cleared, there will be an ongoing temperature issue with the unit.