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Magic Chef Oven fan won't turn off

When your Magic Chef oven fan won't turn off, first determine whether it is simply completing a normal cooling-down period. The cooling fan may run for more than an hour after the oven is turned off, especially after a high-temperature cycle. If the oven fan keeps running after the oven has cooled, the oven control board or main control board may have a relay stuck closed, sending continuous voltage to the fan motor. However, control boards are often misdiagnosed, so check the wiring diagram and oven thermostats before replacing a board. A defective high-limit thermostat can continue sending power to the fan, while a faulty thermostat with contacts stuck closed can cause the same problem. Use a multimeter to test the thermostats for proper continuity, following safe testing procedures. This guidance applies to a Magic Chef range, stove, or oven with a cooling fan that will not shut off. Enter your model number to find the exact replacement oven control board, main control board, high-limit thermostat, or thermostat for your specific appliance.

01 - Magic Chef 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 - Magic Chef 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 - Magic Chef 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 - Magic Chef 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 - Magic Chef 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 does my Magic Chef oven fan keep running after I turn it off?

How do I know if the high-limit thermostat is causing my Magic Chef oven fan not to turn off?

Can a bad oven thermostat make the cooling fan run continuously?

Should I replace the Magic Chef oven control board if the fan will not shut off?

How do I find the correct replacement part for my Magic Chef oven fan problem?

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