Frigidaire Defrost Heater Not Working

If the defrost sensor fails to shut off the defrost heater.

Frigidaire defrost heater not working.

The defrost thermostat senses the temperature of cooling coils. The defrost sensor monitors the temperature of the evaporator. If the refrigerator does not defrost the defrost thermostat might be defective. This video provides step by step repair instructions for replacing the defrost heater on a frigidaire refrigerator.

If you are working on a top freezer or bottom freezer you may get a higher ohm reading 25 50 ohms this is ok as long as it isn t extremely high. The defroster is part of the heater and air conditioner system. This defrost heater is connected to a defrost thermostat. The most common reason for replacing.

If the heater tests ok replace the thermostat. Firmly grasp these connectors and pull them off the terminals. If the defrost sensor fuse blows the defrost system will not work and the refrigerator will not defrost. This video provides step by step repair instructions for replacing the defrost thermostat on a frigidaire refrigerator.

Assemble the timer back onto the fridge and reinstate the power supply. The fuse will blow in order to shut off the defrost heater. You may need a pair of needle nosed pliers to help you. The defrost sensor has a fuse to back up the sensor in case the sensor fails.

To determine if the defrost heater is at fault use a multimeter to test the defrost heater for continuity. Your car s defroster is needed to keep the inside of the windshield from icing up in cold weather. Learn how to use a multimeter to check for wiring problems in an appliance that s not working. The most common reason for replacing the.

If the heater thermostat and thermistor check out ok replace the main board. A defrost heater is connected by two wires and the wires are connected with slip on connectors. To reset the refrigerator defrost timer tepte simply states to locate the circular notch on the timer and turn it counterclockwise with a flathead screwdriver. It should be around 15 25 ohms give or take and if not replace it.

It needs to be turned until the fan stops which means your fridge has reset the defrost button. Outer walls are hot. In a defrost system the defrost heater turns on several times in a day to melt away the frost developed on the evaporator coil. It can be a safety problem if the defroster is not working or quite uncomfortable if the vents are stuck in the defrost position.

Do not pull on the wires themselves. If the defrost heater does not have continuity replace it.