Problem
The AC unit produces a scraping or metal grinding sound while running.
Possible Causes
Loose fan blade
Debris inside the outdoor unit
Worn fan motor bearings
Internal component damage
How To Fix It
Turn off the AC system immediately
Inspect the outdoor unit for debris
Check that the fan spins freely
Remove any visible obstructions
When To Call A Professional
If the scraping noise continues, an HVAC technician should inspect the fan motor and internal components.
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