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Weil McLain CG-6-PION igniter keeps clicking for 60 seconds even after boiler has fired

yambro
yambro Member Posts: 2
in Gas Heating
Hi,
My Weil McLain CG boiler igniter fires the boiler on the first click, but continues clicking for an extended time after boiler is lit. Just started doing this. Igniter was replaced last season. System runs well except for this.
Thanks for the help,
Paul

Comments

  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,214
    It could be the ignition control module (ICM) going bad. Once the pilot is lit, it sends a signal in the form of DC volts back to the ICM which is supposed to stop sparking to the pilot and turn on the main gas valve. Perhaps a sticky relay to the spark circuit in the ICM.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
  • yambro
    yambro Member Posts: 2
    Alan,
    Thanks. Talked with Weil McLain this morning and thought the ICM could be the cause as well. Can't replace it right now, is there any harm in leaving it in for a few weeks?
    Paul
  • Abracadabra
    Abracadabra Member Posts: 1,948
    yambro said:

    Alan,
    Thanks. Talked with Weil McLain this morning and thought the ICM could be the cause as well. Can't replace it right now, is there any harm in leaving it in for a few weeks?
    Paul

    control module could fail completely leaving you with no heat.
    your call to change it now or wait. if the spark relay is sticking closed, it could just as easily stick open.

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