Questions and comments about Old Peerless gas boilers

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  • Questions and comments about Old Peerless gas boilers

    If you have further questions or comments about old Peerless gas boilers, please post them here. I check this every day.
    I answer all plumbing and heating questions, all day long.

  • #2
    Hi, we have a Peerless MMW 115. Pilots on but the burners won't fire up. Everything is clean, I shut it all down, relit the pilot but those burners won't fire. Took the cover off the Aquastat, all clean,wiring looks fine. Any help is appreciated. thank you.

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    • #3
      Hi J Rogers It may be a bad gas valve, check to see if you have power going to the gas valve if you have a 24-volt system and you have 24 volts at the gas valve, the gas valve may be bad, I would replace the thermocouple or thermopile (generator) first. then if you have power to the gas valve and it does not open, the gas valve is bad. let me know if you do not have power to the gas valve.
      I answer all plumbing and heating questions, all day long.

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