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Lu Member Posts: 1
Hi I have problem with a hot water heating system it has honeywell zone valves and one of them are banging or a hammer effect when it closes .

Any solutions .


  • Zman
    Zman Member Posts: 7,328

    First thing to check is the arrow on the side and the arrow on the circulator. They should be going in the same direction.

    A picture would help.

    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein