lux air furnace

Discussion in 'HVAC' started by duane, Mar 15, 2007.

  1. Mar 15, 2007 #1

    duane

    duane

    duane

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    induction fan of lux air furnace turns on, ignitor turns on and reaches 2300 degrees, furnace lights, ignitor goes out, furnace goes out - after a few minutes furnace tries to recycle - this repeats as many as five times, furnace goes on lock-out, will not light - must physically turn off power to furnace at switch in basment or thermostat cobntrol, wait a few minutes, turn power back on to furnace, try again - furnace will then run awhile, takes two cycles to run at times and produce heat - what to do?

    have cleaned flame sensor and had same checked for cracks, checks out okay - please advise
     
  2. Mar 17, 2007 #2

    AlexGB

    AlexGB

    AlexGB

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    Sounds strangely familiar.

    I had a similar problem with my Luxaire, except once in a while the inducer fan would run and turn off before the ignitor even got a chance to heat. Other times, it would do what you describe.

    My furnace guy sent out two different technicians who tried swapping flame sensors, ignitors and other things I don't remember, all to no avail. The final solution was to replace the whole control module (circuit board) for about $220.

    Good luck.
     
  3. Jan 3, 2010 #3

    john_oconnell

    john_oconnell

    john_oconnell

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    Same furnace - same problem - I have a contract with my gas company - they have been out 5 times (3 different technicians) and have no clue - last guy swears the circuit board is OK the problem is the positioning of my thermostat. Just doesn't compute to me.:mad:
     
  4. Jan 5, 2010 #4

    baldy

    baldy

    baldy

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    make sure you have a good ground at the igniter remove it carefully use some sand paper where the igniter mounts to for a good ground reinstall and see what happens ....but before you put it back look for cracks in the porcine..
     

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