SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

At the beginning of they year, I noticed only zones 1-3 working; 4-6
did not. I had an irrigation repair guy come out, he did some other work
- replaced some bad heads. He leaves, and it works fine - for about 3
days. Again, I can get 1-3 to work manually, but not 4-6. I have him
come out again and somehow he can get zones 4-6 to run manually, but I
cannot. And, on the timer, 1-3 work and zones 4-6 don't. When he's here,
it works. After he leaves, it does not. He can get zones 4-6 to run
manually, but I can't. It's not that difficult a controller. I've had it
10 years and I know the system. Why can he get it to work and after he
leaves, I cannot? I've tried everything and have run through diagnostics.

Thanx. The intermittent wiring issue sounds more likely. There is only one program with two start times. But having only one start time has not made a difference.