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Magic Chef Range vent hood turning on by itself

If your Magic Chef range vent hood turns on by itself, the thermostat is the most likely cause. Some vent hoods use a thermostat to start the blower automatically when heat builds up in the hood, then shut it off after the temperature drops. Check your owner's manual or wiring diagram to confirm whether your model has this feature. If the blower or lights turn on and off randomly, the control board may have burnt relay contacts or an internal short. A worn touchpad can also close the circuit intermittently and send an unwanted signal to the control board. Next, check the user control and display board by pressing each control button. Buttons that respond inconsistently can indicate a failed board. The main control board can cause the same intermittent operation, while a shorted control module is less common and should be tested only after the controls and switches check out. Before ordering a Magic Chef range vent hood part, enter your model number to find the exact replacement thermostat, control board, touchpad, user control and display board, main control board, or control module for your hood.

01 - Magic Chef Range Vent Hood Thermostat

If the temperature in the hood gets hot there may be a thermostat that will automatically turn on the vent blower until the temperature cools down. Check the owner's manual and /or the wiring diagram to see if your vent hood has this feature.

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Highly Likely

02 - Magic Chef Range Vent Hood Control Board

The control board has relays that send power to the fan and lights. If the contacts in the relays become burnt, or the board is shorting out, they may make contact intermittently. If the fan or lights are turning off and on the control board may be bad.

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Common

03 - Magic Chef Range Vent Hood Touchpad

When the touchpad buttons are pressed a circuit is closed sending a signal to the control board. If the button is worn it can cause the circuit to close intermittently, turning on the hood.

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Common

04 - Magic Chef Range Vent Hood User Control and Display Board

The buttons on the user control and display board may be only intermittently activating. To determine if the control and display board is defective, try pressing each of the buttons on the control panel. If some of the buttons are not responding correctly, replace the user control and display board.

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Common

05 - Magic Chef Range Vent Hood Main Control Board

The main control board has relays that send power to the fan and lights. If the contacts in the relays become burnt, or the board is shorting out, they may make contact intermittently. If the fan or lights are turning off and on, the main control board may be bad.

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Common

06 - Magic Chef Range Vent Hood Control Module

The control module receives inputs from the control panel switches to turn the lights and blower on and off. If the control module shorts out, the blower or lights may go on and off randomly. Because this is not a common problem make sure the control panel and switches are tested before replacing the control module.

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Common

Frequently Asked Questions

Why is my Magic Chef range vent hood turning on by itself?

Can a vent hood thermostat make the fan turn on by itself?

How do I know if the Magic Chef range vent hood touchpad is causing the problem?

Could the control board be turning my range vent hood on by itself?

How do I find the correct Magic Chef range vent hood replacement part?

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