Results 1 to 2 of 2
  1. #1
    Join Date
    Aug 2012
    Post Likes

    Noisy 5+ year old Themastar Blower Motor?

    I am having a strange sound coming from my furnace/ blower/ etc.. I can turn my fan on from thermostat everything is fine. I can turn on furnace and everything is fine. When I turn on the AC the blower??? is making a squealing noise. I can't seem to pin point where it is coming from. Could it be a noisy bearing on blower motor? I was thinking that, but I would think that the noise would also be present when furnace and fan were running. Thanks for any help.

  2. #2
    Join Date
    Jul 2006
    Post Likes
    Some furnace's use the higher speed taps for ac and lower speed taps for fan only and heating operation .need a tech to look it over before it does not run at all .could be a bad blower wheel

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.