Question
Hi and thank you for taking the time to try and help me :)

I recently noticed that my sprinklers fail to change zones.  I have three zones on my sprinkler system and only one zone will work now.  This just happened about 2 weeks ago. Prior to that, I used to be able to manually turn on one zone, turn it off and then it would automatically move to the next zone.  I would then manually turn on that zone and so on. I'm pretty good with sprinklers but can't figure why my system won't change zones.  Is this a pressure issue?

Thanks again!!  Jennifer

Answer
It is probably an electrical problem.  Make sure all the wiring connections are sound, both at the controller and the valves.  You may also try cleaning the controller circuit panel with one of the canned air devices and a very soft brush.  If this doesnt help, consider replaceing the controller.