I need a little help. I think these may be a simple solution I can fix if not I will tell my customer to see an irrigation specialist. Here is the problem. The control panel flashes PR Off, which I assumes means power off. I looked into it and found it was the fuse blown in the box I replaced it and ran the all the zones manually and it work fine. Well it happened again, so I replaced the fuse again. I worked again, but blew the fuse once again. I am thinking it blows the fuse when it cuts on automatically. Is this a bad connections somewhere, bad ground, bad relay or what? Thanks for any help.