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Range Vent Hood Fan And Light Not Working

The part(s) or condition(s) listed below for the symptom Range vent hood fan and light not working are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Range vent hood fan and light not working

For the most accurate results, enter your model number.


Cause 1Incoming Power Problem

If the vent hood plugs into a wall outlet, plug something else into the outlet to determine if the outlet is getting power. If the vent hood is not plugged into a wall outlet, check the home circuit breakers or fuses.

Cause 2Thermal Fuse

To determine if the thermal fuse has blown, use a multimeter to test the fuse for continuity. If the thermal fuse does not have continuity, replace it.

Parts
Cause 3Micro Switch

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.

Parts
Cause 4Switch Kit

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.

Parts
Cause 5Rocker Switch

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.

Parts
Cause 6Rotary Switch

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.

Parts
Cause 7User Control and Display Board

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.

Parts
Cause 8Main Control Board

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.

Parts
Cause 9Selector Switch

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.

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Cause 10Switch

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.

Parts