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Starting Member


Friday, August 3rd 2007, 1:57am

troubleshoot Richdel 500 pri irrigation controller


I'm hoping someone can offer a suggestion for me. I have a Richdel 500 pri irrigation controller which is malfunctioning. It has power. I can set the time and program controller, but it is not 'triggering' any of the zones. Also, when I set any given zone to 'manual' the controller does not go into manual mode (normally when flipping a zone to manual the display changes and indicates that the zone is on). I've turned the unit off and reset it a couple of times with no effect.

Any thoughts, suggestions would be appreciated!!!

Thanks in advance.


Supreme Member

Posts: 5,292

Location: Metro NYC


Friday, August 3rd 2007, 2:42am

Check your wiring for electrical continuity. Check the controller for output voltage/current.



Posts: 2,319

Location: USA


Friday, August 3rd 2007, 6:36am

Sounds like the controller died on you. Try this. Disconnect the ground wire from the controller. Reset the controller. Now turn one on manually and see if it's working in the display. If not your controller's bad. Good luck!
If I can't fix it, it's broken!


Supreme Member


Saturday, August 4th 2007, 3:10am

Could have gotten a spike...

Disconnect power to the timer....AND....remove the 9v battery...let it sit for a minute or two..then connect power again and try it......

Sprinkler Solutions, Inc.
Arizona and Colorado

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