Jenn Air Oven fan won't turn off

When your Jenn Air oven fan won't turn off, the oven fan may keep running because a relay in the oven control board is stuck closed and continues sending voltage to the fan motor. The control board is a common cause, but check the wiring diagram and oven thermostats before replacing it, since control boards are often misdiagnosed. A defective main control board can cause the same problem when its fan relay shorts closed, especially if the fan keeps running after the oven is turned off and fully cooled. Keep in mind that a cooling fan may run for more than an hour after use, particularly after a high-temperature cycle, and this can be normal. If the fan continues running after the oven cools, test the high-limit thermostat with a multimeter. A thermostat that stays closed or shows continuity at any temperature may be defective and should be replaced. Enter your Jenn Air oven model number to find the exact replacement oven control board, main control board, high-limit thermostat, or thermostat for your appliance.

01 - Jenn Air Range/Stove/Oven Oven Control Board

The oven control board has relays that regulate power to the bake, broil and fan circuits according to the user settings and sensor input. If one of these relays shorts out, the control board may send continuous voltage to the oven fan. However, this is rarely the case. Before replacing the control board, first check the oven thermostats. If an oven thermostat fails, it may cause the oven fan to run continuously.

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02 - Jenn Air Range/Stove/Oven Control Board

If the oven fan is not shutting off, a relay on the control board may be stuck closed sending constant power to the oven fan. Check the wiring diagram first before replacing the board. Control boards are often misdiagnosed.

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Common

03 - Jenn Air Range/Stove/Oven Main Control Board

The main control board has relays that send voltage to the fan motor. If one of the control board relays shorts closed, the control board may send continuous voltage to the fan. If the fan continues to run after the oven is turned off and cooled down, the main control board is likely defective. If the control board is defective, replace it.

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Common

04 - Normal Cooling Down Period

The oven cooling fan may run well over an hour after the oven is shut off to cool down the components. The hotter the temperature was set the longer the cooling fan needs to run to cool off the oven. This is normal.

Less Common

05 - Jenn Air Range/Stove/Oven High Limit Thermostat

The high limit thermostat sends voltage to the oven fan as the oven heats up. If the high limit thermostat is defective, it may keep sending voltage to the oven fan after the oven has cooled down. To determine if the high limit thermostat is at fault, use a multimeter to test the thermostat for continuity. If the high limit thermostat does not have continuity, replace it.

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Less Common

06 - Jenn Air Range/Stove/Oven Thermostat

The thermostat sends voltage to the oven fan as the oven heats up. If the thermostat contacts are stuck closed, the thermostat may continue to send voltage to the oven fan after the oven has cooled down. To determine if the thermostat is at fault, use a multimeter to test the thermostat for continuity. If the thermostat shows continuity at any temperature, this indicates that the thermostat is defective. If the thermostat is defective, replace it.

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Less Common

Frequently Asked Questions

Why won't my Jenn Air oven fan turn off?

How long should a Jenn Air oven cooling fan keep running?

How do I test the high-limit thermostat or thermostat when my oven fan won't turn off?

Could the Jenn Air oven control board be causing the fan to run constantly?

How do I find the correct Jenn Air oven fan or thermostat part?

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