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No heat - rinnai e110crn boiler

jeff21 Member Posts: 1
Just had a rinnai e110crn boiler installed and the water doesn't seem to be pumping through the system. It just happens to be the coldest day of the year so far


  • DZoro
    DZoro Member Posts: 1,048
    Can you post some pictures of the system?
  • Jamie Hall
    Jamie Hall Member Posts: 18,931
    Was it properly bled? Are the pumps running? Valves opening?
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Jack
    Jack Member Posts: 1,046
    That is a Grundfos pump in the boiler. turn off the heat and hot water buttons on the controller, remove cover, remove that quarter size chrome screw on the head of the Grundfos and with a fine straight edge screwdriver reach in and spin the impeller. They sometimes get stuck.