Help on a 1980 carrier
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  1. #1
    Join Date
    Jan 2013
    Posts
    7

    Help on a 1980 carrier

    I have a carrier unit that is giving me trouble. When the power is applied the inducer motor turns on and the spark for the pilot begins sparking. After the pilot lights the burners come on and seem to burn fine however they only stay on for ten seconds at best. I am stumped because I have already put in a new gas valve, three wire pilot assembly and rollout switch. I am writing asking for advice seeing as I am still fairly green in the field. I also dont want to keep throwing parts at this unit. Also customer doesn't want to replace unit at this time.

  2. #2
    Join Date
    Aug 2012
    Location
    NE wisconsin
    Posts
    401
    Keep throwing parts at it, you will have a new furnace one price at a time.

  3. #3
    Join Date
    Jan 2013
    Location
    California
    Posts
    87
    32 year old unit? I hope you performed a safety inspection on it before you took on liability for it. You touched it, now you own it...

  4. #4
    Join Date
    Jan 2013
    Posts
    7
    I looked it over before working on it and I know that there haven't been any issues with safety in the past. This unit is in my house and due to throwing $ into it I don't have the money to put in a new unit. It's pretty sad that I can fix others units but I can't figure out my own.
    Last edited by beenthere; 01-13-2013 at 06:58 AM. Reason: Price

  5. #5
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
    Posts
    6,336
    Did you check the heat exchanger for cracks?

  6. #6
    Join Date
    Feb 2010
    Location
    butler pa
    Posts
    1,073
    pressure switch ok ?

  7. #7
    Join Date
    Jan 2013
    Posts
    7
    That was my next option. I know it should have been done first but it is cast and the high limit isn't tripping. Any other ideas?

  8. #8
    Join Date
    Jan 2013
    Posts
    7
    Pressure switch working properly

  9. #9
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,508
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  10. #10
    Join Date
    Jul 2010
    Location
    wisconsin
    Posts
    270
    Quote Originally Posted by tmryan1012 View Post
    I looked it over before working on it and I know that there haven't been any issues with safety in the past. This unit is in my house and due to throwing $350 into it I don't have the money to put in a new unit. It's pretty sad that I can fix others units but I can't figure out my own.
    I thought you saidthat customer doesnt want to replace the furnace, are you the customer or the tech or both?

  11. #11
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,508
    Quote Originally Posted by tiger man View Post
    I thought you saidthat customer doesnt want to replace the furnace, are you the customer or the tech or both?
    Or neither....
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    I know enough to know, I don't know enough
    Liberalism-Ideas so good they mandate them

  12. #12
    Join Date
    Jan 2013
    Posts
    7
    I am both but I regularly work on commercial units

  13. #13
    Join Date
    Aug 2011
    Location
    Ontario
    Posts
    381
    Why not ask some of the guy's you work with.?? Or throw it around next time your at the supply house.?? DIY ??
    There is no bad beer, some just taste better than others.

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