Fantech FG4 inline fan got noisy

dougstove Posted By dougstove, Dec 22, 2010 at 1:30 AM

  1. dougstove

    Feeling the Heat

    Aug 7, 2009
    New Brunswick, Canada
    One year ago I installed a Fantech FG4 inline fan in a return-air system that brings cool air back to my stove room.
    I got some good advice here on controllers, and it worked well.
    But, when I started it up again this fall, it was suddenly noisy, with a grinding/whine noise that was not present last year.

    Any ideas what is going on? Could the fan have gotten dirty, or become imbalanced?
    There is a high-pitched grinding whine, that oscillates a bit.
  2. fbelec

    Minister of Fire

    Nov 23, 2005
    northern massachusetts
    did you pull it apart and check for a mouse nest? my brother inlaws nabor went to start his boat this past spring and wound up going for a motor job. some how a mouse built a nest in one of the cylinders and when he started it all that stuff for the nest and the mouse herself made the motor throw a rod.

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