To determine if the defrost heater is at fault use a multimeter to test the defrost heater for continuity.
Frigidaire defrost heater not working.
In a defrost system the defrost heater turns on several times in a day to melt away the frost developed on the evaporator coil.
If the defrost sensor fuse blows the defrost system will not work and the refrigerator will not defrost.
This defrost heater is connected to a defrost thermostat.
The most common reason for replacing.
If the defrost heater won t turn on frost will continue to accumulate on the evaporator coils and the coils will eventually frost over.
If the heater tests ok replace the thermostat.
If the refrigerator does not defrost the defrost thermostat might be defective.
The defrost thermostat senses the temperature of cooling coils.
Leaky door or lid gasket broken defrost heater bad defrost bi metal thermostat defrost control failure faulty compressor.
It should be around 15 25 ohms give or take and if not replace it.
The defroster is part of the heater and air conditioner system.
Do not pull on the wires themselves.
Outer walls are hot.
You may need a pair of needle nosed pliers to help you.
Firmly grasp these connectors and pull them off the terminals.
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.
Your car s defroster is needed to keep the inside of the windshield from icing up in cold weather.
A defrost heater is connected by two wires and the wires are connected with slip on connectors.
The defrost sensor has a fuse to back up the sensor in case the sensor fails.
It needs to be turned until the fan stops which means your fridge has reset the defrost button.
If the defrost sensor fails to shut off the defrost heater.
Assemble the timer back onto the fridge and reinstate the power supply.
Before you can test your defrost heater you have to remove it from your refrigerator.
This video provides step by step repair instructions for replacing the defrost heater on a frigidaire refrigerator.
This video provides step by step repair instructions for replacing the defrost thermostat on a frigidaire refrigerator.
Learn how to use a multimeter to check for wiring problems in an appliance that s not working.
The fuse will blow in order to shut off the defrost heater.
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.
The defrost sensor monitors the temperature of the evaporator.
It can be a safety problem if the defroster is not working or quite uncomfortable if the vents are stuck in the defrost position.