PDA

View Full Version : Thumping sound from VENT


FlavioCarlos
Feb 22, 2008, 09:37 PM
I have a 4 year old attic furnace which recently started making a thumping noise soon after the blower shuts off. The thumping noise is coming out of the Master BDRM Filter Vent. I checked the filters and they are good. The filter vent is also well secured. Any idea what it could be??

hvac1000
Feb 23, 2008, 12:40 AM
Could be a

Broken motor mount
Loose blower wheel.