Question
I have 10 zones all working fine for 15yrs. Started with all zones no water I have power and checked for any loose or damaged wires. System acts like running but still no water all zones.

Answer
Hey Diane, I hope this helps. If you remove the lower door from the cabinet, you will access the back of the controller. You should see 2 fuse locations. Check and see if one of these fuses has blown. It is probably the bottom fuse, if the top fuse was blown, then you won't get a display. If it is the bottom fuse that is blown, replace it with the same amperage (it should say on the fuse). If it is not a blown fuse, then it could be that the controller is defective. If the fuse is blown, what this tells us, is that there is either a short in a wire going out to the valves, or a defective solenoid. Once you replace the fuse, you can turn each valve on one at a time, and the fuse will blow, on the bad valve. Let me know if I can be of anymore help, thanks and have a great day.