Page 1 of 2 12 LastLast
Results 1 to 13 of 15
  1. #1
    Join Date
    Oct 2005
    Location
    Louisiana
    Posts
    1

    Lennox Package Unit Model# TGA120S2BH1Y (Gas Heat) NO HEAT

    My partner went on a service call for this unit because the heat wouldn't come on. It has 2 boards on it and the board with the indicator light is blinking 3 times. On the unit, it says that if the light is blinking 3 times is is usually flame overthrow but he checked it and it checked out ok. He has ordered a new board but we are hoping someone has info or troubleshooting advice on this unit. We're not too familiar with Lennox units.

  2. #2
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,615
    What is flame overthrow?
    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

  3. #3
    Join Date
    Oct 2012
    Posts
    3,703
    I think it is rollout. Does that have the manual-reset rollout in it. Where the terminals corroded and not making a good connection?

  4. #4
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,615
    If that's the case, there is much more that needs to be checked
    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

  5. #5
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    flame what...... never heard of the term in all my life..... good luck .......
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  6. #6
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,615
    Quote Originally Posted by carmon View Post
    flame what...... never heard of the term in all my life..... good luck .......

    Overthrow
    http://youtu.be/D9DkciMTsLI
    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

  7. #7
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    oh now I get it .....
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  8. #8
    Join Date
    Jul 2007
    Location
    Virginia
    Posts
    5,571
    Quote Originally Posted by starkey View Post
    It has 2 boards on it and the board with the indicator light is blinking 3 times. On the unit, it says that if the light is blinking 3 times is is usually flame overthrow but he checked it and it checked out ok.
    The 3 flash code - Flame Rollout Switch Open or Prove Switch Open or Closed.

    The Flame Rollout is a 290f (+/- 12f ), manual reset switch.

    The Combustion Air Prove Switch closes on negative pressure fall, showing the inducer motor is up to speed before allowing the ignition sequence to continue.

    Did you have the door/panel back on burner compartment when you were testing?

    Did you do any testing of the combustion blower or it's capacitor?

    Sorry, but I don't post manuals in this "OPEN" forum.
    Instead of learning the tricks of the trade, learn the trade.

  9. #9
    Join Date
    Feb 2007
    Location
    Central NJ
    Posts
    504
    I always check the circuit path from the molex plug connection(s), just because the roll out is closed doesn't mean it's finishing

  10. #10
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,533
    We don't discuss step by step diagnostics in the open forums. Get your post count up to 15 and apply for pro membership, so we can deal with your questions in the restricted access Pro forums.

    Even the T series has a wiring diagram. I would follow it and everything should be clear. What is the serial number?
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  11. #11
    Join Date
    Dec 2002
    Location
    SouthEast NC ICW & Piedmont Foothills
    Posts
    7,635
    hell, he's a one & done, apparently didn't get the answer they wanted.

    and I'm a little concerned about the "partner" thing?????
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  12. #12
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,533
    Quote Originally Posted by dandyme View Post
    and I'm a little concerned about the "partner" thing?????
    I don't think Louisiana is one of "those" states...
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  13. #13
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,615
    Quote Originally Posted by timebuilder View Post
    I don't think Louisiana is one of "those" states...
    In Loozy they call them "Pardners"
    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

Page 1 of 2 12 LastLast

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