Trying to fix a 4 valve system. 2 of 4 are working properly. The 2 that are not working wont turn on with the auto timer, however they will operate when I turn the bleeder or solenoid. I replaced the solenoid on both valves, re-wired all 4 zones at the box, still no luck with those 2 zones. I also checked connections at the control panel. Any suggestions? Thanks
