Results 1 to 7 of 7
  1. #1
    Join Date
    Oct 2006
    Posts
    2
    Are the fan switches on a coleman furnace adjustable. This furnace sits in a trailer. The blower motor runs for about 3mins after thermostat is satisfied. Is this the correct amount of time or is it too long?

  2. #2
    Your fan will run until your heat exchanger has cooled down enough to "break" fan switch. Is your thermostat overshooting its set point because of this?

  3. #3
    Join Date
    Nov 2001
    Location
    east kansas
    Posts
    8,032
    Is your filter clean. What about your A-Coil?

    When was your last tune-up?

  4. #4
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,945
    Sounds a little long. Are you certain it is 3 minutes, or might it just seem that long

    Are the homeowner of this unit or a tech working on it?
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  5. #5
    Join Date
    Oct 2006
    Posts
    2
    I am a service tech. Adjusted anticipator on thermostat and watched cycle off. It is a 7600 series coleman furnace and the fan shuts off at 2min 30 seconds. Is there some sort of timer on this furnace that breaks contact after so long.

  6. #6
    Join Date
    May 2003
    Location
    Dixie
    Posts
    1,344
    look at the unit...a tech should be able to tell what cycles the blower off.....

  7. #7
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,167
    It could have a fan limit switch with the fan switch fixed at 105-20, or a fan switch at 110-20, or 130-35.

    You'll have to look for yourself which one is controling the fan.
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