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Electronic ignition,intermittent problem.

greg c
greg c Member Posts: 14
in THE MAIN WALL
Friend has an older ICP 125k furnace.Every so often it shuts down.If he cycles power to the unit and wait a few minutes it will light off again.The pilot flame appears good,theres no diag.LED's on board.Where should I start?

Comments

  • Empire_2
    Empire_2 Member Posts: 2,340
    where TO START.

    clean THE PILOT ORIFICE FIRST AND IF ITS A SEPERATE FLAME SENSOR, CLEAN THAT. What ignition module is in the furnace? S8610U1003?

    Mike T.
  • Unknown
    Unknown
    Give me a call

    at 401-437-0557 or e-mail gastc@cox.net and I will help you out.
  • Empire_2
    Empire_2 Member Posts: 2,340
    Hey Tim

    I get your Training schedules for event's, but when will you be near Buffalo, NY?

    I have guy's that could really benefit from you.

    Mike T (Empire Mech.)
  • greg c
    greg c Member Posts: 14
    re: Mike T

    It's scheduled for friday am,I'll try the orifice then get all the nameplate data.
  • Bill W@Honeywell
    Bill W@Honeywell Member Posts: 164
    The old S8610U is gone...

    It has been replaced by the S8610U3009, a completely updated version of the old grey S8610. It's black, is capable of pre-purge, post purge, both, or none. Also has diagnostic LED's & Enviracon plug for the "OnWatch" diagnostic pen (green model). Acvailable from any Honeywell distributor. Go to www.customer.honeywell.com, scroll down to the lower right, type in the part nimber, and you'll get a PDF file of the tech sheets for this control. You don't need a password, and there is no charge.
  • greg c
    greg c Member Posts: 14


    Turns out the gas valve was bad.The coil that controls main flow had an open in it.Put a new Honeywell universal in there and presto heats on.Thanks for the help guys/gals :)
  • Empire_2
    Empire_2 Member Posts: 2,340
    Greg C?

    1 Q:,...It went from a intermittent problem of cycling then off. Reset and boom, it went on. My Q: is why did the New GV make it alright? Valves are usually good or bad, although they can malfunction, but not in the way you originally described,. Just curious...

    Mike T.
  • Unknown
    Unknown
    Yes I have

    the same question as Mike T?????
  • greg c
    greg c Member Posts: 14


    Exactly what I always found to be the case with anything like that,its either good or bad.I'm thinking the customer got the symptons confused as I was the third person to look at this problem.
  • Unknown
    Unknown
    I have seen,,,

    corroded or loose terminals on gas valves cause intermittent operation problems.
This discussion has been closed.

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