Likely Causes
A failing blower motor
A failing blower motor. This is one of the more frequent reasons homeowners in our service area call about this exact symptom.
A grease-clogged filter restricting airflow
A grease-clogged filter restricting airflow. This is one of the more frequent reasons homeowners in our service area call about this exact symptom.
A faulty fan switch or control board
A faulty fan switch or control board. This is one of the more frequent reasons homeowners in our service area call about this exact symptom.
Safe Checks You Can Try First
- Remove and clean the grease filter, which can restrict both airflow and motor load
- Check that the fan switch is making a solid connection
- Confirm the outlet or circuit powering the hood is live
When to Call a Technician
A motor that hums but doesn't spin, or produces no sound at all, needs a technician visit.
Frequently Asked Questions
No — most cases like this are a specific, repairable part failure rather than a sign the whole unit needs replacing. A technician can tell you the realistic cost-versus-replace comparison on the spot.
The checks above are safe to try yourself. Beyond that, appliance repair involves electrical, gas, or refrigerant systems that are best left to a trained technician.