Frigidaire Oven fan won't turn off

Common reasons your Frigidaire Oven fan won't turn off

The most common reasons your Frigidaire oven fan won’t turn off are a bad thermostat, defective PCB (printed circuit board) or faulty thermistor (temperature sensor).

  • 50%

    50% of the time it's the
    Thermostat

  • 19%

    19% of the time it's the
    PCB

  • 12%

    12% of the time it's the
    Thermistor

  • 19%

    19% of the time it's the
    Something else

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Most common repairs needed to fix a Frigidaire oven

Thermostat Replacement

A thermostat in the control section of the oven trips to turn on the cooling fan when temperature in that area gets warm. The thermostat should reset to turn the fan off when temperature in the control area cools down below the thermostat reset temperature. If the control cooling fan stays on constantly, the thermostat may be stuck in the tripped position. When the cooling fan in your Frigidaire oven won’t turn off, schedule oven repair service and we’ll send a Sears Home Services technician to your home to fix the problem.

PCB Replacement

In some Frigidaire ovens, the cooling fan in the control area is controlled by the PCB (also called the electronic control board). The control board senses temperature in the control area through a signal sent by the thermistor. If the PCB isn’t detecting the thermistor signal properly or the relay sending electrical current to the cooling fan is stuck, the fan will run constantly. When the cooling fan in your Frigidaire oven runs constantly and never shuts off, schedule oven repair service to have a technician visit your home and fix the problem.

Thermistor Replacement

A thermistor is a temperature sensor that detects temperature through changes in its resistance. The PCB or electronic control board sends a low-voltage DC signal through the thermistor and determines temperature by checking the voltage drop through the thermistor. When the thermistor is defective, its resistance will indicate that temperature in the control area is too high even if the actual temperature is a room temperature level. This will cause the electronic control to run the cooling fan constantly. When the cooling fan in your Frigidaire oven runs constantly, have a service technician visit your home and fix the problem.

What to expect when you experience a Frigidaire oven fan that won’t turn off

How is the fan not turning off problem fixed?

Correcting most fan not turning off problems usually involves replacing the thermostat, PCB or thermistor. However, there are many potential causes, so a thorough diagnosis is key to fixing the problem. An accurate diagnosis is essential to understanding how much the repair will be.

Sears Home Services recommendations for a Frigidaire oven fan that won’t turn off

When the oven fan won’t turn off, it can be for many reasons. To avoid replacing unneeded parts we recommend having a Sears Home Services professional perform diagnostic tests to identify the root cause of the problem. Our technicians are experienced at diagnosing all types of oven failures.

What to look out for with a Frigidaire oven fan not turning off diagnosis

Diagnosing modern appliances without proper knowledge and training can be difficult. Without using proper diagnostic techniques, fixing your oven problem will only be achieved through changing parts on a hunch. Appliances, especially in the last 10 years, have become extremely advanced, and many models have electronic parts that are difficult to test. DIY repairs on the latest appliance models are becoming increasingly difficult.

If your Frigidaire oven’s fan never stops spinning, you may be dealing with a stuck relay or misread temperature sensor. That constant airflow wastes energy and can dry out your dishes unexpectedly. Before unplugging your oven out of frustration, consult oven technician professionals to diagnose the underlying cause. A well-tuned fan system ensures proper shut-off for stress-free meal prep.

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Frequently Asked Questions

Why does my Frigidaire oven fan keep running continuously?
A stuck relay on the control board, a faulty temperature sensor, or shorted wiring can cause the fan to run non-stop. Turning off power at the breaker will stop it until you can repair the oven.
Does a defective temperature sensor keep the fan on?
Yes. If the sensor provides incorrect heat readings, the fan could remain engaged, thinking the oven control area is still hot. Replacing the sensor often fixes the issue.
Can a broken door switch cause the fan to stay on?
It’s possible in some models where the convection fan logic ties to door state, that a bad door switch will cause the fan to continue running when you open the oven door. Inspect the door switch if your manual indicates that the convection fan should turn off when you open the oven door.
When should I call a technician for an oven fan that won’t turn off?
If a sensor replacement and quick reset don’t help, the control board or wiring may be at fault. An appliance pro can diagnose and replace these electronic components.

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Glossary Terms

A thermocouple is a sensor used for measuring temperature, consisting of two different metal wires joined at one end, which generate a voltage proportional to temperature changes.

An oven bag is a heat-resistant, nylon or polyester bag designed for cooking a wide variety of foods in the oven, ensuring moist and flavorful meals by trapping moisture and flavor inside.

An oven rack is a removable shelving unit inside an oven that holds cookware, allowing air to circulate around the food for even cooking and baking.

A dishwasher sump is located at the bottom of the dishwasher, serving as a collection point for water during the wash cycle. It houses the main pump and filter, facilitating the recirculation and drainage of water, essential for the cleaning process.

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