My lawn sprinkler system was working perfectly last summer. When I went to turn it on this summer, I've noticed that the timer isn't working. Well, it is but it isn't. The timer's display is responsive and I can get it to respond to different settings with the buttons and knob. This issue is that it's not actually turning the water on and off. I'd imagine that it should be controlling an internal component within the valves in the third image. Right now, I have to manually turn the valve shown in the second image to get the sprinklers to operate, I can't just leave it on and let the timer do its job. Its not the end of the world, but if you have a timer why not use it?
Does anyone know what the issue here is? Could it be electrical damage within the valve box? Any advise would be greatly appreciated.