-
Step 1
Use a voltmeter to make sure that power to the outlet is still live. Do this before you turn the power off. The problem could be in the house wiring and not the fan.
-
Step 2
Turn off the electricity before touching any part of the fan. Then unscrew the housing and take out the entire fan.
-
Step 3
Clean all the moving parts. An exhaust fan pulls in dust and grease along with the air and will clog the gears and the blades to the point of not working if it is not cleaned regularly. Sometimes, a good cleaning is all that the fan needs.
-
Step 4
Wash the fan's filter in the dishwasher. Run it through one cycle and see a huge difference.
-
Step 5
Check for frayed wires and visually inspect the connections. With all the vibrations from the fan, the screws holding the wires can come loose and wires can disconnect. The heat from the stove can eventually melt the wiring so that fraying can begin. Replace the wires if they look frayed or worn.
-
Step 6
Oil all the moving parts after it is cleaned. Make sure to wipe off any excess oil before reconnecting the fan into the housing unit.
-
Step 7
Inspect the blades of the fan to make sure they are not bent and stuck. Straighten out the blades by hand or with small pliers. Be careful not to break the blades because then you will be looking at replacing the fan instead of repairing it.
