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Motorized valve not opening (normally closed valve) even with a new motor valve

westviewveg
westviewveg Member Posts: 1
in Domestic Hot Water
Hello, my new motor valve opens manually before connecting to the wires but once connected it wont open manually not auto. I thought the old motor valve was the culprit but with new motor valve it does the same thing. local plumbers cant figure out what the issue it. What could be the issue here? Another motor valve opens ok manually but not opening on auto. Could this be the wire/electric cord issues?

Comments

  • HVACNUT
    HVACNUT Member Posts: 6,558
    What's the voltage at the zone valve?
  • neilc
    neilc Member Posts: 2,976
    post pictures of both valves showing the manual lever, and any labels, both valves,
    also show the flow direction indicator, if there,
    and indicate your direction of flow,
    HVACNUT said:

    What's the voltage at the zone valve?

    maybe your wired for normally open valving(?)

    post a distant shot of boiler, valves, and zone controller(if applicable), all in one or 2 shots,
    known to beat dead horses

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