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

Quoted from "mrfixit"

Replace the fuse if the controller has one. Some RainDials do. Or reset the controller.
Turn on the stations one at at time and see which number causes the fuse error.
Now you need to figure out which valve is associated with the number that blows the fuse.
You can look at the color of the wire at the controller and match it up at the valves.
You can turn on the valves one at a time manually and see which valve runs the area of the number that's the problem.
When you find the valve disconnect one of the wires from it.
Now run the controller again after you reset it. Did it cause the fuse error?
If so you have bad wiring. If not you have a bad solenoid.
There's a slim chance it's the controller itself. You can disconnect the common wire from the controller and run it again. I doubt you'll get the fuse error now.
I'm going on the assumption you don't have a master valve. If you do that could be the problem valve but the fuse error would happen on every station.
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Or you can do resistance measurements of the wires with a meter. If you know how to do measurements you'll probably still have to find the valve. You definitely will if it's the solenoid.

Quoted from "mrfixit"

Thanks