The orbit controller has power and the water is turned on. This unit worked previously 2 days ago on its scheduled date and time, however, it will not work on its schedule or manually. I can physically open the valves and they work. Not sure if it's the controller or just the wiring. Usually, when I press Manual, it says ALL, and then will start the first valve/zone. Not now. If it is a wire(s), is there a specific wire to check? Please advise. Thank you.