LG
Exhaust Fan Motor or Control Failure
Over-the-range LG microwave exhaust fan does not run or runs only at one speed.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Failed exhaust fan motor, Defective fan speed relay on main PCB, Stuck fan blade due to grease buildup, Faulty fan speed selector switch (if separate)
How to Fix / Troubleshooting
Safety: Unplug the microwave before cleaning or inspection.
Steps:
- Clean grease filters: Remove the bottom metal filters and clean them thoroughly. Clogged filters can cause the fan to overheat and shut down.
- Check fan operation: After cleaning and drying filters, plug in the unit and test each fan speed. Listen for the fan motor.
- Inspect for obstructions: With power disconnected, look up into the fan intake area for foreign objects or heavy grease buildup.
If the fan still does not run or only one speed works, the fan motor or control board fan relay likely needs replacement by a technician.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Exhaust Fan Motor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements