You cannot use a dimmer switch on a fan motor but you can find fan speed controllers.
Can you use a dimmer switch on a ceiling fan light.
Or something similar you should not use this dimmer with a motor load.
The new switch does require an additional electrical wire.
There are a few better options available to you.
Install a fan control switch.
Using a standard dimmer with a ceiling fan can damage the motor and or cause the dimmer and or motor to overheat and cause a fire.
A dimmer switch should never be wired as the main controlling switch for a ceiling fan or ceiling fan remote control.
You can install a ceiling fan light dual dimmer switch to operate the fan speed and light intensity from the original wall switch location.
Wiring ceiling fan switches.
Also check for minimum maximum wattage.
If you see the text for incandescent only.
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A dimmer switch should only be used for controlling lights that are compatible with the dimmer switch.
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There is a growing misconception that this is safe to do but the logic behind it is flawed.
A dimmer switch as the name suggests lets you control the intensity of the light produced from the light to which it is connected such as a ceiling fan with a built in lighting fixture.
If you don t enjoy using your ceiling fan s pull levers to control the light and speed of the fan you can always install a dual dimmer switch instead to give you more customization of your ceiling fan.
You cannot use a light dimmer to control a fan.
How to wire wall switches for a ceiling fan application.
This will allow you to control the light intensity and the fan speed which can not be achieved if you re only using the fan s chains.
The best option you have for a ceiling fan that is wired to a standard dimmer switch is to change it out for a simple toggle switch.