Zones run continously
A little background on my system. About 1 years, Zone 1 started to run continously. The rest of the zones worked fine. I had to open the solenoid a little to let some water out and then Zone 1 would work, but never shut off.The other zones would go through their cycle and shut off.
About 3 months ago, the pump ended up running with no water and I burned the pump up. I just had my neighbor replace the pump,and the pressure switch. The only way to get the pump on and off is by turning the circuit breaker off in the garage.
It runs great, except now all 4 zones come on. My neighbor replaced the valve in Zone 1,cleaned the other 3 valves. Same problem. The timer is a Rainbird PC401(original timer).
The timer is fine. I unplugged it and turned the pump on and all 4 zones came on. The wires are connected to the timer and to the valves.
I'm about at my witts end with this. Any suggestions? I have to keep a post it note nearby, so I remember to turn the pump off. Of course, with 4 zones running at once, there's a loss of pressure.