No Water to Any Heads

Discussion in 'Irrigation / Sprinkler Forum' started by Pcapes, Apr 27, 2020.

  1. Pcapes

    Pcapes New Member

    Joined:
    Sep 1, 2017
    Location:
    Minnesota
    Sorry if this gets lengthy, but I want to provide as much info as I can for a proper prospective of the issue.
    When we shut our system down for the winter all was working fine. Startup now we do not get any water to any heads.
    Only difference this year to other start ups was that we unhooked/unplugged the pump and our battery for our backup was dead, so when we hooked it all back up the controller was back to factory setup. I went thru the book and reset everything, times, days, etc. Rain sensor is set to off.

    Pump runs and is primed. We hooked it up and we get water to the valves, but none to any of the heads in any zone we turn on. We have noticed the zone closest to the pump will get wet around the heads, but that is not the zone we turned on.

    Tried switching the bypass on the valves, still nothing to heads.

    There is not a pressure buildup at the pump, not sure where the water is going?
    Not sure why we get nothing to the heads?
    Any ideas?
     
  2. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    An irrigation pump can run with 100% blockage. However the water at the impeller can get quite hot and melt pvc. You may primed the pump but sometimes it takes a few times for the pump to prime itself. There should be a spigot at the pump so you can run the pump and wait for it to prime. After you prime turn on the pump motor. In about 15 seconds open the spigot to allow it to expel air and leave it open. The pump will make a different noise as the water rises from the well and the primp starts to prime itself.

    You mentioned that it was disconnected, what was? The pump removed or just the power? If the pump was removed and reinstalled there could be an air leak therefore it cannot prime.

    you mention water at the valves. Is it full flow before the valve? If you turn the solenoid about a 1/4 turn the valve should open without power from the controller. If water flows check for 24v ac at the zone connection at the controller, if there is then check it at the valve.

    sometimes when nothing works, check the common wire (WHT). At the first valve all the WHT are usually connected together. Check that all are connected under a wire nut.
     
    Last edited: Apr 27, 2020
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  4. Pcapes

    Pcapes New Member

    Joined:
    Sep 1, 2017
    Location:
    Minnesota
    We primed and it was pumping out good. The Pump was removed and reinstalled. We did disconnect and reconnect just in case we had a air leak, no changes. We will try turning the soleniod and see what happens.
     
  5. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Since the pump runs with the pump start relay that uses the 24v's, there should be voltage at each zone connection when selected. One zone can go bad or all zones in a module. Depending on your controller, the first three or four are built into the controller with add on modules for more zones, or all are modules with three or four zones per module.
     
  6. Pcapes

    Pcapes New Member

    Joined:
    Sep 1, 2017
    Location:
    Minnesota
    Gosh I have no idea. How would I tell this?
     
  7. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
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