Range Vent Hood Fan or Light Not Working

To determine if the micro switch is defective, use a multimeter to test the switch for continuity. If the micro switch does not have continuity, replace it.

To determine if the switch kit is defective, use a multimeter to test the switch for continuity. If the switch does not have continuity, replace the switch kit.

To determine if the rocker switch is defective, use a multimeter to test the switch for continuity. If the rocker switch does not have continuity, replace it.

To determine if the rotary switch is defective, use a multimeter to test the switch for continuity. If the rotary switch does not have continuity, replace it.

The user control and display board may be defective. Control boards are often misdiagnosed—before replacing the user control and display board, first check all of the more commonly defective parts.

The main control board might be defective. Control boards are often misdiagnosed—before replacing the main control board, first check all of the more commonly defective parts.

To determine if the selector switch is defective, consult your vent hood’s wiring diagram and use a multimeter to test the switch for continuity. If the selector switch does not have continuity, replace it.

To determine if the switch is defective, use a multimeter to test the switch for continuity. If the switch does not have continuity, replace it.

Vent hoods are typically hardwired to the circuit breaker box, but they can also be plugged into a wall outlet behind the cover panel. In either case, it may be difficult to test the incoming power to the vent hood without removing a large cover panel. If the unit is plugged into an accessible wall outlet you can plug another small appliance into the outlet to confirm there is power. If you cannot access the incoming power connection easily, confirm the circuit breaker suppling power to the vent hood has not tripped.

Inspect the wires for damage. Make sure the wire connectors are on securely. Repair or replace any damaged wires.

If you've determined the thermal fuse has not blown and the control board is receiving proper voltage, then it's possible the range vent hood's control board is defective. However, control boards are often misdiagnosed—before replacing the control board, first check all of the more commonly defective parts.

If you've determined the thermal fuse has not blown and the touchpad and control panel is receiving power, then the touchpad and control panel is likely defective and will need to be replaced.