Symptoms
- Fan makes no noise or movement when switched on
- Light on the hood may still work fine
- Fan worked intermittently before failing completely
- No unusual smell or burning odor
Likely causes
- CommonTripped breaker or blown fuseThe hood often shares a circuit that can trip from other kitchen appliances.
- CommonFaulty fan switchThe switch itself can wear out over years of use.
- PossibleGrease-clogged fan blades or motorHeavy grease buildup can bind the motor so it won't spin.
- PossibleFailed fan motorMotors eventually burn out, especially without regular cleaning.
- Less commonLoose or damaged wiringVibration over time can loosen wire connections.
What to do
- Check your breaker panel for a tripped breaker feeding the kitchen or hood, and reset if needed.
- Test the light on the hood; if it works but the fan doesn't, power is reaching the unit and the fault is likely the fan or its switch.
- Remove the grease filter and look at the fan blades for heavy buildup that could be jamming the motor.
- Clean the filter and any visible grease on the fan blades with hot soapy water.
- Try the fan again after cleaning; a jammed motor can sometimes free up once grease is cleared.
- If the fan still won't run, the switch or motor likely needs professional testing and replacement.
Tools and parts
- Screwdriver
- Dish soap
Range hood fan motorSearch: “range hood exhaust fan motor replacement”
Range hood grease filterSearch: “range hood grease filter replacement”
When to call a pro
If the fan still won't run after cleaning and checking the breaker, an appliance technician can test the switch and motor.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.