Distributors - Page 64

 

The "NO AC" or "Blank" display is a diagnostic message telling you that the controller has stopped receiving AC power. For the "NO AC" message, the controller is most likely running on the power supplied by the backup battery.

Check the power source by plugging a lamp or radio into the wall outlet to verify there is power at the outlet. If your controller is not plugged into a wall outlet, the power source is hardwired.

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There are a number of reasons why the sprinklers may not come on from the automatic program. Assuming the controller will run the zones from the controller manually, you most likely have a programming issue.  Below are a few possible causes to the watering cycle not starting:

Check the Programming:

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Below is a chart indicating the maximum wire runs that can be used
when installing Hunter AC solenoids and valves.

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Here are some tips for valve repair.

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There are two reasons why your sprinklers would continue running:

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There are two ways to bleed a zone valve for manual operation:

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Capping or removing a sprinkler is done differently depending on whether or not you live in an area that freezes and requires the irrigation system to be winterized. Winterizing your irrigation system involves draining or blowing the water out of the system with compressed air to prevent freeze damage.

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Pop-up sprinklers require water pressure to “pop up", a broken irrigation pipe or a worn sprinkler wiper seal can cause a loss of water pressure.

To determine whether or not your pressure needs to be assessed or replacement parts may be necessary follow these couple steps.

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Here are some common reasons why a pop-up sprinkler may stay stuck up:

  • Debris in the pop up body
  • The riser is damaged
  • The riser seal is worn

 

To fix this:

  1. Unscrew the body cap
  2. Pull out the sprinkler assembly
  3. Examine the parts
  4. Clean out debris
  5. Replace parts if necessary

 

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