Having problems with a Irritrol controller. It is a Rain Dial-Model # Rd-600-EXT. I have checked everything I can think of. When I set it on manual as soon as I push the manual button it flashes off. It has two stations. I direct wired the transformer to the two stations and they both operate fine . Any suggestions would be appreciated.
Does it still flash off with no valves attached?
If so it's probably defective.
If not, you probably have the output of one of the valves crossed, so when it turns on that valve it shorts out.