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Arietta Range vent hood turning on by itself

When your Arietta range vent hood turns on by itself, the thermostat is the most likely cause. Some vent hoods have a temperature thermostat that automatically starts the blower when heat builds up, then shuts it off after the hood cools. Check your owner's manual or wiring diagram to confirm whether this feature is normal. 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 its circuit intermittently and send an unwanted start signal. Next, inspect the user control and display board by pressing each control button. Buttons that respond inconsistently can indicate a defective 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. Disconnect power before testing or replacing parts. Enter your Arietta range vent hood model number to find the exact thermostat, control board, touchpad, user control and display board, or control module for your specific hood.

01 - Arietta 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 - Arietta 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 - Arietta 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 - Arietta 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 - Arietta 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 - Arietta 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 Arietta range vent hood turning on by itself?
How do I know if the Arietta range vent hood thermostat is causing the blower to turn on?
Could the Arietta range vent hood touchpad be turning on by itself?
Should I replace the Arietta range vent hood control board first?
How do I find the correct Arietta range vent hood part?

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