Results 1 to 5 of 5
  1. #1
    Join Date
    Apr 2008
    Location
    Edmonton, Alberta, Canada
    Posts
    4

    Confused trouble with a CP9C furnace

    one of my contractors has 2 CP9C080B12 Coleman furnaces that will not come out of low fire in the test mode and refuse to modulate much past 40 %, the contractor hs changed the board , the motor, the transducer and the air temp disharge sensor , Any ideas ?

  2. #2
    Change contractors.
    Hey cockroach, don't bug me!

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  3. #3
    Join Date
    Apr 2008
    Location
    Edmonton, Alberta, Canada
    Posts
    4
    i thought about it ....lol

  4. #4
    Join Date
    Jul 2001
    Location
    Gold Coast of Connecticut
    Posts
    4,656
    Ductwork?
    Aire Serv of SW Connecticut- Gas heat, dual fuel and central a/c systems installed and serviced

  5. #5
    Join Date
    Apr 2008
    Location
    Edmonton, Alberta, Canada
    Posts
    4
    the ductwork is sized well seems to be more mechanical even when you put it into test mode the staging fails to take place

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