Sprinkler valves not working

[Lou]

Hi, I have 3 out of 4 sprinkler valves not working any more. The timer is outputting about 27 - 28 volts to the valve solenoids. I have changed the solenoids that are not working, however, I still have the same problem. All the valves will operate manually with no problem. I also have restripped the wires, scraped the ends for better conductivity, and used new wire caps. I have a second timer for another manifold, and it is outputting about 26 volts. (It works fine.) Could 27 - 28 volts be too much? Also, the 9 volt battery was pretty low, but I don't think that would affect it due the the ac power. Thanks for any help. LJ

[David]

Are U sure that a wire isn't broken? Maybe it got broken through the winter by the ground possibly heaving when there was freezing and thawing.

conductivity,

[Tim Fischer]

In addition to what the others said, have you checked voltage AT THE VALVE (vs. at the timer/controller)?

If not, disconnect the wire from a valve, turn on the zone, and measure the voltage.

-Tim

[Lou]

[Lou]

Hi, Thanks for the replies. There is voltage getting to all of the solenoids. I called Rainbird tech support. The tech said that 28 - 29 volts is too high. He said the transformer is malfunctioning. The voltage should be around 26 volts. He suggested getting a new transformer, which is what I will look for when I got to Home Depot. If there is none, I will problably buy a new controller. The tech also mentioned that the solenoids may be burnt out from the higher voltage. Hope not. LJ

[William Brown]