Wiring Issue

Discussion in 'Irrigation / Sprinkler Forum' started by Greg H, May 4, 2016.

  1. Greg H

    Greg H New Member

    May 4, 2016
    South Carolina
    I have one valve that's not working. The positive wire is hot with 27 volts, but when connect the lead to the valve, the voltage goes to nothing. I borrowed the positive wire from an adjacent valve and it worked. I know it's not the timer (I swapped zone 6 & 7 to check it), I know it's not the brand new valve, and I know it's not the common wire. It has to be the positive wire, but I can't figure out why I get 27 volts until there's a load on it.
  2. Reach4

    Reach4 Well-Known Member

    Sep 25, 2013
    A high resistance with no current through it will not show a voltage drop. So there could be a bad connection, but maybe there is some moisture. The moisture could carry the voltage, but the voltage would drop when you draw current.
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  4. flapper

    flapper Member

    May 19, 2016
    You have a high resistance somewhere
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