Results 1 to 6 of 6
  1. #1

    Commercial York indoor blower runs 24/7

    Indoor blower on a 7.5 ton York, natural gas,commercial split system runs 24/7. Heat and compressor cycle like they are suppose to. It also has a fire damper wired into the low voltage controls. Any ideas anyone?

  2. #2
    Join Date
    Jul 2007
    Location
    The Hot South
    Posts
    1,297
    Is the fan set to "on" at the t-stat?

  3. #3
    Stat is on auto and cool.

  4. #4
    Join Date
    Oct 2001
    Posts
    6,945
    pull 24Vs off fan contactor to see that it drops then trace it from there why you have a fan call
    "when in doubt...jump it out" http://www.youtube.com/watch?v=U1qEZHhJubY

  5. #5
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    heat limit tripped will cause 24/7 fan operation .. model #?

  6. #6
    Join Date
    Jul 2008
    Location
    Philadelphia PA
    Posts
    8
    Is it a VisionPro T'stat? there is a version of the VisionPro that runs fan continously in occupied mode no matter how you program it or what setting it is on

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