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Ultra299 Weil MacLain

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south1
south1 Member Posts: 3
edited October 2024 in Gas Heating

wondering if anybody could help - I have a two zone system. One zone is working blowing warm air the second zone is not blowing just cold air . The menu screen is blue and modulating so it is not a lockout issue. The red light flashes on my zone two I think relay? Not sure why one zone works the other not ?

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  • south1
    south1 Member Posts: 3
    edited October 2024

    meant say zone 2 is blowing air just cold air

  • south1
    south1 Member Posts: 3

    sorry meant to say zone 2 is blowing cold air

  • HVACNUT
    HVACNUT Member Posts: 6,872

    Its not the boiler, it's that Hydro coil zone only. Air in the heat pipe to the coil, bad circulator, bad relay.

    The fan comes on automatically with a heat demand with your setup.

    The Red light on the Zone Panel shouldn't be blinking. It should be steady on if there's a heat call. What brand zone panel?

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