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Help with Steam Boiler Stopping

jneilan22 Member Posts: 3

I have a steam boiler that serves radiators on floors 1 and 2 of my home. The boiler also services baseboard hot water heaters on floors 1 and 2 via a scavenger loop using a circulator pump and a heat exchanger. All was working well until about a month ago when I woke up and realized that the boiler was not running, even though the circulation pump was. I checked all the thermostats and all were working properly (i.e., batteries were not dead). I turned off the master switch to check on the pilot light and other areas, but didn't find anything. When I turned it back on, everything was working fine. However, the next morning, the same thing happened. I again shut it off and turned back on, and the boiler lit up and fired both systems.

Does anyone know what might be causing this? Thanks,


  • Mad Dog_2
    Mad Dog_2 Member Posts: 7,113
    edited April 19
    It could be all kinds of things.  You would be best off getting a heating guy or VG electrician to diagnose it.  "Scavenger loop"  I like that usage. Is that your word or is that regional vernacular?  Mad Dog 
    STEAM DOCTOR Member Posts: 2,012
    Could be bad ignition control module or flame sensor. Or a million other things.
    mattmia2Mad Dog_2