Hi, 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, s...
