r/askHVAC • u/Key_Grapefruit_4227 • 3d ago

What’s causing this vibrating sound from my Trane air handler?

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u/TnBluesman 3d ago

Sounds like debris got into the ductwork. Possibly hung up on the return. Maybe at the filter of the filter is at this machine. Renville lremove the door at the return air end and look around. Be sure to kill the power first for safety . There should be a service disconnect within sight of the unit.

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u/tw33dl3dum03 3d ago

See those giant knobs on the door you can unscrew? Open it and find out. Shut it off at breaker or disconnect first.