Zone 3 stuck - Water All night long $$$$
Greetings from Colorado! last evening i turned the sprinkler system on (9:30pm) and it cycled properly through zones 1, 2 and 3....i woke up this morning (6am) and the zone 3 was still operating. I tried shutting off the controller which normally shuts down the system. It didn't. To turn the water offer i had to shut the main valves going to the system manifold.
As a novice I am not sure what to look for is it a solenoid problem? a controller problem?
Any advice where to start looking would be appreciated.
thanks in advance,