Results 1 to 5 of 5
  1. #1
    Join Date
    Nov 2010
    Location
    Plainfield IL, aka anytown USA
    Posts
    6

    Reznor hanging furnace problem

    Hello Everybody - Merry Christmas,

    I had this same problem last year, it fixed itself till now,

    Medium size Reznor, 20 years old, has worked fine, just stopped working, pilot is on, jumping the 2 wires from the furnace at thermostat does nothing, no clicking - nothing.
    Last year did the same thing, I changed the stat, went up and jumped wires at the furnace nothing, it just started working, I switched the stat back to the original and it continued to work until now.

    Any ideas would be appreciated -

    Thanks, Frank

  2. #2
    Join Date
    Sep 2002
    Location
    Northeast Ohio
    Posts
    4,843
    Off on the high limit and it did not reset. Not user servicable. By the way, jumping out the thermostat at the unit with the stat connected is a bad idea. At 20 years old, I would almost bet on a cracked heat exchanger, Reznors are notorious for that. Better call in a professional HVAC company to get it checked.
    A good HVAC tech knows how, an educated HVAC tech knows why!

    DEM


  3. #3
    Join Date
    Nov 2010
    Location
    Plainfield IL, aka anytown USA
    Posts
    6
    Quote Originally Posted by heaterman View Post
    Off on the high limit and it did not reset. Not user servicable. By the way, jumping out the thermostat at the unit with the stat connected is a bad idea. At 20 years old, I would almost bet on a cracked heat exchanger, Reznors are notorious for that. Better call in a professional HVAC company to get it checked.
    Thanks for the reply Heaterman.

    I did disconnect the wires from the the thermostat before I jumped them, no luck.

    Garage CO detector has never gone off.

    I'll have to try and find someone to take a look,

    Thanks Again,

    Frank

  4. #4
    Join Date
    Jul 2010
    Location
    nebraska
    Posts
    1,629
    Frank a CO detector won't go off on a cracked exchanger until the unit soots up and rolls out flame. As techs we want to catch those cracks way before they get to that stage.

  5. #5
    Join Date
    Nov 2010
    Location
    Plainfield IL, aka anytown USA
    Posts
    6
    Quote Originally Posted by martyinlincoln View Post
    Frank a CO detector won't go off on a cracked exchanger until the unit soots up and rolls out flame. As techs we want to catch those cracks way before they get to that stage.
    OK, thanks,

    With it being Christmas eve and Christmas day tomorrow I'm not having any luck finding someone. It's not an emergency but I have a bunch of stuff I don't want to freeze ( automotive paint, etc. ) so I have to get on it quick.

    Happy Holidays,

    Frank

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event