Range hood fan and light not working

Range hood fan and light not working. There is no fan or light on the range hood. Range hoods are useful appliances for kitchens.

It can vent fumes and heat outside through a grease filter, as well as vent out other unpleasant odors at times when necessary.

A range hood will work best if you maintain it: air filters get dirty and clogged with grease over time, so you’ll need to replace them.

If your range hood isn’t working properly, there may be a problem with the ductwork or thermal fuse; you may want to check these things first before deciding on the best course of action.

Range hood fan and light not working

range hood fan and light not working

Here we will discuss some common issues and solutions for the Rangehood fan and light not working.

 Thermal Fuse Issue

Check the continuity of the thermal fuse with a multimeter to determine if it has blown. If the thermal fuse isn’t getting electricity, replace it.

Replace Main Control Board

For example, if your failure symptoms sound like a heat sensor issue (the oven not turning off when it gets too hot).

Then this likely means that you might have just needed to replace your faulty temperature sensor instead of the entire control board.

  Defective Micro Switch

To see if the microswitch is faulty, use a multimeter so as to test whether it has continuity. If the meter reads that the switch does not have continuity and that it hasn’t closed when pressed, replace it.

Check Rotary Switch

Check the connections of the rotary switch with a multimeter to see if it is defective. If they aren’t, and if you’ve checked the power supply and verified that there aren’t any other problems with it.

Check to see if the problem could be with loose or broken connections in the switch itself. If you find that there’s no continuity, replace it accordingly using a multimeter for further testing.

 Damage Selector Switch

Testing the selector switch for continuity requires using a multimeter to verify if the wiring is working correctly. If the wiring is not working, you must either fix it or purchase a new switch.

Change Switch

To find out if the switch is bad, use a multimeter to test for continuity by placing the leads of the multimeter onto two contacts of the switch.

You may need to replace your relay if there is no continuity on either point.

Board for user control and display

User control and display boards are complex and can be hard to troubleshoot. Before replacing the user control and display board,

check for any parasitic drain currents that might occur from faulty or leaky electrolytic capacitors.

Problems with incoming power

To determine if a faulty outlet is a cause, plug something into the faulty outlet. If it’s getting power, then plug something else into the next available outlet and go from there.

If the exhaust hood isn’t plugged into a wall outlet, you can use an outlet checker or other outlets to try and see if the problem is simply a burnt-out fuse or tripped breakers.


Why has my range hood fan stopped working?

When your range hood’s fan stops working well, the issue may be nothing more than a simple broken on/off switch or burned-out motor.

To pin down the problem, you’ll need to test either the switch or motor for continuity. If there is continuity, then the motor may very well be your culprit, but if not, check the switch first, as it has a greater chance of being defective.

Why is my range hood light blinking?

While it is uncommon, it is possible for the lights of an oven to flicker.

The voltage is passed through a component called a diode, which sends half of the power to the lamp, the light that helps us see when cooking food, for example.

The flickering occurs at such a rapid rate that most people do not notice it, but it should be handled properly, just in case.

Related Guides