Is your vent hood not working? Here are some of the most common reasons for this. Check or test each item to determine what could be wrong with the hood.

Incoming Power Problem

If your vent hood plugs into a wall outlet, then there could be a problem with the outlet itself. Plug something into the outlet and see if you’re getting power. If the hood is directly wired, check your circuit breakers.

Thermal Fuse Issue

Perhaps the thermal fuse has blown. Use a multi-meter to test the fuse for continuity. If there is no continuity, the fuse needs to be replaced.

Micro Switch Defect

Defective micro switches can also cause vent hoods to stop working. Again, use a multi-meter to test for continuity. If the switch doesn’t have continuity, it needs to be replaced. Do this for the switch kit, rocker switch and rotary switch too. And if there is no continuity, replace as appropriate.

Main Control

Is the main control working? Control boards are often misdiagnosed. Before replacing the main control board, check to see if some of its parts have become defective.

Selector Switch

A defective selector switch can also cause your vent hood to stop lighting. If you have some wiring experience, you can check the wiring in the hood’s diagram to find out if the wires are in place. Also, use a multi-meter to check for continuity.

Need More Help?

There are additional reasons for faulty vent hoods but those mentioned above are the most common. If you’re still having problems, contact A-Tech Appliance Parts & Service for further diagnosis. We have highly qualified professional technicians waiting to help you.