Valve Does Not Open

Discussion in 'Irrigation / Sprinkler Forum' started by jomama, Dec 15, 2008.

  1. jomama

    jomama New Member

    Dec 15, 2008
    My neighbor has a six zone Hunter sprinkler system and the 1 inch valves on zones 1 & 2 do not open. The solenoids are getting power and I have disassembled the valves, cleaned them, and reassembled them, and still no luck. Even when I unscrew the solenoids, they still do not open.
    I'm "dazed and confused"................
    Eureka!!!! When cleaning the valve, I didn't notice another vent/orifice directly under the solenoid plunger. It didn't look like there was an opening because it had sand in it!!! I found a thin wire and shoved it through the opening, and the sand came out at the tip of the wire. I reassembled the valve and it works like a charm!!
    Last edited: Dec 22, 2008
  2. Wet_Boots

    Wet_Boots Sprinkler Guy

    Mar 23, 2007
    Metro NYC
    If the solenoids don't actuate, they aren't getting enough current. Suspect poor wiring.
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  4. Gary Swart

    Gary Swart In the Trades

    Sep 1, 2004
    Yakima WA
    Look especially closely at the ground wire. The usual way to connect a series of valves to ground is to daisy chain them. There could be a loose connection in the links.
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