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Dunkirk PVWB-4D Standing Pilot, Gas Fired, Hot Water Boiler,

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m294542
m294542 Member Posts: 1
in Gas Heating
My Dunkirk Boiler is not igniting. The pilot is on and when the thermostat calls for heat the furnace circulates, dampers opens, fan starts but the burners do not ignite. Help!

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  • unclejohn
    unclejohn Member Posts: 1,833
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    If the PV stands for power vent check the pressure control.
  • unclejohn
    unclejohn Member Posts: 1,833
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    The pvwb I looked up has a spark ignition. Try cleaning the flame sensor and pilot
  • SuperTech
    SuperTech Member Posts: 2,165
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    I would make sure the flue damper is opening all the way. If it is you should check for 24 at the B1 and B2 on the aquastat.

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