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No heat in baseboards

BigGuy Member Posts: 1
I just replaced the circulator pump in my hot water baseboard heating system. When the furnace comes on, the pipes get hot coming out of the furnace all the way to where the 4 zones come off, but after that, there is no heat upstairs and the baseboards and 3 radiators are not even warm. I have bled the system several times for air, but still no luck. What is the problem?

Thanks in advance for your thoughts.


  • Rich_49
    Rich_49 Member Posts: 2,766

    you use the same model circulator that was there ? Do you have a few pictures of the boiler and connected piping , thy would help ?
    You didn't get what you didn't pay for and it will never be what you thought it would .
    Langans Plumbing & Heating LLC
    Serving most of New Jersey, Eastern Pa .
    Consultation, Design & Installation anywhere
    Rich McGrath 732-581-3833
  • Kakashi
    Kakashi Member Posts: 88
    bled the system

    How did you bleed the system? Circulator going the wrong way? You can only force purge a system one zone at a time with the boiler off. If you're doing it at the bleeder on baseboard/radiators. No easy way to bleed radiators either...

    pics would help too