what's wrong with my sprinkler?
My sprinkler system is Rain Bird ESP-TM. It does not work now. When it is time to water the lawn, the controller displays zone 1's minutes count down to 0, then zone 2's minutes count down to 0, and so on until the last zone. But none of the sprinkler head from any zone comes up. Of course not water is sprinkled either.
What's wrong with my sprinkler system? How can I fix it? Any help is highly appreciated.