Sharp
Indoor Mechanical Vibration / Loose Components
Loud rattling or buzzing noise from indoor unit during operation.
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
Loose front panel or filter, Foreign object in fan wheel, Worn indoor fan motor bearings, Loose mounting bracket or screws
How to Fix / Troubleshooting
Safety first: Turn off the unit and breaker before opening the front panel.
- Check panels and filters: Ensure the front cover is fully latched and filters are seated correctly. Tighten any visible screws.
- Inspect fan wheel: Look for plastic pieces, insects, or debris caught in the cross-flow fan. Remove carefully.
- Mounting bracket: Gently push on the indoor unit. If it rocks, tighten the wall mounting bracket screws and ensure the unit is properly hooked.
- Motor bearings: If noise is a grinding or high-pitched squeal that changes with fan speed, the fan motor bearings may be worn. Replace the indoor fan motor assembly.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Indoor Fan Motor and Cross-flow Fan
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements