The fan you see behind the control panel is referred to as an oven cooling fan. Because the purpose of having the fan there is to cool down the oven after you have just finished cooking. That’s why the cooling fan is supposed to start running when you are done cooking or the oven cavity gets extremely warm.
As a result, you may find the fan running for some time after you turned the oven off until the oven’s inner chamber is completely cooled down. And that’s completely normal. But what is not normal is when the fan keeps running for a long time and you see no sign of stopping it by itself.
In this article, we will be answering why your oven fan stays on and doesn’t stop. We will also show you a way out to fix the issues.
Why Does My Oven Have A Cooling Fan?
After cooking in the oven for a while, the burner stays hot and so does the oven cavity. As a result of this, the oven handle and window get too hot to even touch. In such a situation you may burn yourself while operating the oven if the machine is not being cooled down. And when you are thinking of cooling the oven down, the cooling fan starts running until the inside of the oven reaches a safe temperature.
But sometimes the oven cooling fan does not intend to stop and that’s clearly an issue that needs to be rectified.
Oven Fan Is Running Continuously-Why?
But, before I tell you why your cooling fan might run non-stop, let me tell you the basics first.
The oven cooling fan operates automatically. The power module of the fan gets a signal from different parts of the oven like the thermostat, temperature sensor, or control panel to operate in accordance with the signal. Therefore you have to find out with which part your cooling fan is attached or from which part it gets commanded. And start assessing the issue from there.
The Temperature Sensor Is Faulty
Every oven has a built-in temperature sensor that enables the power module of the cooling fan to turn off and on. When the sensor sends a signal that the oven is too hot, the power module turns on the fan and does the opposite when the signal says the oven is cold. But when the sensor is faulty, it will always send the wrong signal. And such a wrong signal may run the cooling fan for eternity.
Take Action: To check the condition of the sensor, use a multimeter to check the continuity of the sensor. If you don’t see the continuity, simply replace the sensor.
Faulty Control Thermostat
Some ovens are equipped with adjustable thermostats that use additional electrical contact to turn on the cooling fan if the oven gets extremely hot. So if your oven has an adjustable thermostat that regulates the temperature, make sure you check the viability.
Take Action: The thermostat is mainly located behind the control dial. Just pull the control knob out and unplug the attached wire from the thermostat and see if the fan still runs. If the fan is not running after detaching the wire, that means you will have to replace the thermostat.
Faulty Oven Selector Dial
The electrical control of the oven selector commutator that controls the power to the cooling fan may get damaged or stuck. This situation with the oven selector dial will not let the fan stop.
Take Action: To check the commutator, open the oven’s top panel and look closely at the back part of the oven selector dial to find out if any of the contacts are stuck. Don’t worry. If the contact is stuck, it should be exposed right in front of your eye.
Inspect The Control Panel
Don’t keep any stone unturned. When you are done checking everything mentioned above, inspect the control board circuit. The circuit board is the thing that controls every function of your oven.
Take Action: Unglue the display over the control panel. Then unscrew the circuit board to replace it with a new one.
What Should I Do If My Oven Fan Won’t Turn Off?
The oven cooling fan should stop automatically when the enclosed oven cavity gets back to normal temperature. But when you figure out that the fan stays on for so long, the first thing you must do is to restart the oven. To do that, turn off the oven from the main power outlet and wait for 20 seconds before you turn it back on.
If the fan still runs, you should find out the reason why it is happening in the first place and rectify the issue by yourself or with the help of a professional.
Therefore, first, let’s figure out the reason why your oven fan stays on and what your action should be when you encounter the issue.
Frequently Asked Questions
Do All Ovens Have A Cooling Fan?
You will not see a cooling fan in Gas and fuel free-standing ranges. The cooling fan is found mostly in electrical ranges and wall ovens. But you will find a convection fan in all sorts of ranges and wall ovens for ensuring a precise air convection system.
How Long Should An Oven Cooling Fan Stay On?
The timing largely depends on the temperature you have cooked. But the cooling fan should not run for more than 15-30 minutes. There is also a difference in cooling time between traditional bake and convection mode.
How Do I Turn Off Cooling Fan On Oven?
The cooling fan has no dedicated switch. It runs automatically when the oven is hot and turns itself off when the oven reaches a standard safe temperature. There is no way you can manually turn off the cooling fan.
When you see your cooling fan running for more than an hour, you can be certain that there is a problem inside the oven. And the problem can arise due to many reasons. To find out the issue, we have provided you with a few options to check by yourself. By successfully figuring out the cause, get in touch with professionals if you can not solve the issue by yourself.
Listen! The cooling fan is controlled by the internal mechanism inside the oven. You can not manually turn the cooling fan off in anyways. So you will have to fix the internal issues causing the fan to run non-stop.