I maintain a HOA's island. They had a 9v Rainbird single station controller. They wanted me to put in a new controller that is 110v. No problem, done it 100 times. Get it all wired (2 wires) and they come on but won't turn off. I try to turn it off at the valve and it won't turn off. The controller says they are off but aren't. Bad valve? The only thing i really mess with on systems are heads and controllers. Never really messed with valves or anything.