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Dynasty Range vent hood turning on by itself

When a Dynasty range vent hood is turning on by itself, first check whether the hood has an automatic thermostat feature. When the vent hood gets hot, the thermostat may turn on the blower until the temperature drops. Check the owner's manual and wiring diagram to confirm whether this operation is normal. If the blower or lights turn on randomly, the control board is the next likely cause. Burned relay contacts or a shorted board can send power intermittently. A worn touchpad may also close its circuit without being pressed, while a faulty user control and display board can activate buttons intermittently. Test each control panel button for proper response before replacing the board. The main control board can have the same relay problem, and the less common control module may short and activate the blower or lights. Disconnect power before testing or replacing parts. Enter your Dynasty range vent hood model number to find the exact thermostat, control board, touchpad, user control and display board, main control board, or control module for your specific vent hood.

01 - Dynasty 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 - Dynasty 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 - Dynasty 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 - Dynasty 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 - Dynasty 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 - Dynasty 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 does my Dynasty range vent hood turn on by itself?
How do I know if the Dynasty range vent hood touchpad is causing the blower to turn on?
Could the Dynasty range vent hood control board be turning the fan on by itself?
What should I check if my Dynasty range vent hood blower and lights turn on and off randomly?
How do I find the correct Dynasty range vent hood replacement part?

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