Why Range Hood Turns Off by Itself? Fix This Range Hood Problem

It’s annoying when you’re cooking and your range hood turns off by itself. Not only is it disruptive, it can also be unhealthy if the smoke isn’t being ventilated properly. Before you call a professional to come and fix this range hood problem, there are some things that you can do first. This article will provide you with an easy-to-follow guide on how to troubleshoot your appliance and diagnose the issue.

This video will make you clear about the problem and the solution.

What are the causes of the range hood turning off itself?

Fortunately, there are some steps you can take to identify the cause and get your range hood running correctly again. But first let me give you a knowledge. Always keep the range hood clean as debris can clog your range hood buttons, preventing you from even being able to turn the range hood on.

1. Causes of motor and socket

Causes of motor and socket

The most common cause of range hoods randomly turning off is an issue with the fan motor or socket that powers it. The motor is what moves the fan blades and pulls air into the range hood. If the motor becomes damaged it will become unable to power the appliance. As a result it will turn itself off. The main reason that this can happen is due to overloading.

How to fix

If this is the case, unplugging and plugging in the unit often works as a temporary solution until a proper repair is made. In more complex electronic models, checking for faulty wiring or a malfunctioning electronic control board may be necessary.

2. Cause of faulty sensors

Cause of faulty sensors

In some cases, faulty sensors may also be responsible for a range hood suddenly shutting down unexpectedly. When the sensor malfunctions, it will send false signals to the control board that there is smoke in the air. Which will then turn off the appliance.

How to fix this

If this is the case, replacing or resetting the sensors should fix this problem. Keep in mind that if the range hood has a sensor switch, you will have to replace it with one of the same type.

3. Maybe it is for an overheating issue

It is possible to turn off a range hood automatically when it gets too hot. This feature is ideal for those who don’t want to worry about their kitchen extractor fan turns off manually after lengthy cooking sessions.

Modern range hoods are equipped with heat sensors that detect when the temperature reaches a certain level and will then shut off automatically. This not only helps protect the appliance from overheating, but can also prevent fires caused by excessive heat buildup in the kitchen.

Sometimes you can hear hot air coming through the range hood which is one of the reasons for heating the range hood.

4. Electronic control board failure

Electronic control board failure

An electronic control board failure could be the cause. The electronic control board is the main component responsible for controlling the ventilation fan speed, light functions, and other components of your range hood.

If the electronic control circuit board fails, it will not be able to function properly and will cause the range hood to shut off on its own. Or will prevent the fan switch from working. This is usually seen when there is an issue with power supply or a problem with how it’s connected to other important parts of your range hood system.

How to fix this

If you are facing this issue in your home, then you should contact a professional who can help inspect and repair your appliance. You need to have the electronic control board repaired or replaced for your range hood to function properly again.

5. It can be a cause of your remote control

This doesn’t have to mean that there is something wrong with your range hood for being off by itself. It could be as simple as your remote control losing connection with the range hood.

How to fix this

The good news is that this issue can be easily fixed yourself by reinstalling the battery in the remote control or replacing it if necessary. You may also need to check if all of the wirings are connected properly. And make sure your remote control is within range of the range hood for optimal performance.

Once you have taken these steps, you should find that your range hood stays on longer than before!

Are there any screws loose behind the range hood to turn off by itself?

Before attempting to check for any loose screws behind the range hood, it is important to ensure that all of its components are connected properly and up-to-date. If everything looks in order, then you should check for any loose screws at the base of your range hood or near the motor housing.

Tightening these screws can help prevent intermittent power shutdowns and restore normal functioning of your appliance.

If tightening the screws doesn’t seem to do the trick and you have followed the article, then it could be time to call in a professional service technician. Who can provide an expert opinion and determine if something else is causing the problem with your range hood.

How long can you run a kitchen exhaust fan?

The answer is that it depends on the type of fan you have. Generally speaking, most kitchen exhaust fans can safely be run for up to 20-30 minutes at a time before needing to be turned off. After this time, it’s best to unplug the range hood and allow some air circulation in your kitchen.


A range hood turning off by itself can be an annoying problem that affects the function of your kitchen. However, with the right diagnosis, it is possible to identify and fix the problem quickly and easily.

If you can’t find the source of the issue yourself, consider seeking out expert help for a thorough inspection. With a little guidance, you can have your range hood functioning properly in no time. In addition, be sure to check your appliance’s manual for any maintenance or upkeep recommendations.

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