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Broan Range vent hood turns off by itself

When a Broan range vent hood turns off by itself, start with the filter, since a clogged filter restricts airflow and can cause the blower motor to overheat and shut down. Clean or replace the range vent hood filter, then check the wall vent cap and duct for an obstruction such as a bird's nest or debris. Poor airflow can make the hood motor work too hard. If the venting is clear, inspect the blower wheel and housing. The blower wheel should turn freely by hand, and the hood should not shut off after running for a while. A failing blower wheel and housing, exhaust fan motor, fan motor, or blower motor may have worn bearings or damaged windings that cause overheating. If the motor has power but repeatedly stops, the motor will likely need replacement. This Broan range vent hood repair may also involve a switch, thermostat, thermal fuse, capacitor, or control board, depending on the model. Enter your model number to find the exact replacement filter, vent cap, blower assembly, or motor for your Broan range vent hood.

01 - Broan Range Vent Hood Filter

The filters in the range hood need to be clean to have good air flow. If the filters are clogged the blower will have a hard time moving air, causing the motor to overheat, and shut off. Inspect the filters and clean or replace them if necessary.
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02 - Broan Range Vent Hood Wall Vent Cap for 6 Inch Duct

If the vent hood motor keeps shutting off the venting may be obstructed. If accessible, check the outside vent cap for a bird's nest, etc. Turn the vent hood on and check for good air flow at the inlet and outlet. If you suspect the vent is clogged, but you cannot access it, you should have someone check it for you.
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03 - Broan Range Vent Hood Blower Wheel and Housing

The blower has a motor that can overheat and shut off. If the motor is not turning freely, or is running for awhile and shutting off, but still has power to it, the blower will need to be replaced.
Highly Likely

04 - Broan Range Vent Hood Exhaust Fan Motor

If the exhaust fan motor has power to it but keeps shutting off, the windings or bearings may be bad. Try turning the fan blade by hand. If the fan blade does not turn freely, or the motor keeps shutting off when it has power to it, the exhaust fan motor will need to be replaced.
Highly Likely

05 - Broan Range Vent Hood Fan Motor

If the fan motor has power to it but keeps shutting off, the windings or bearings may be bad. Try turning the fan blade by hand. If the fan blade does not turn freely, or the motor keeps shutting off when it has power to it, the fan motor will need to be replaced.
Highly Likely

06 - Broan Range Vent Hood Blower Motor

If the blower motor windings or bearings are bad the motor may overheat and shut off. Make sure the blower wheel turns freely. If the motor doesn’t turn freely, or the motor is shutting off after it runs awhile, the motor may be bad and will need to be replaced.
Highly Likely

Frequently Asked Questions

Why does my Broan range vent hood turn off by itself?
How do I check whether a clogged vent is making my Broan range vent hood shut off?
Could the blower wheel or fan motor be causing my Broan range vent hood to keep shutting off?
Should I replace the Broan range vent hood control board when it turns off by itself?
How do I find the correct replacement part for my Broan range vent hood?

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