Turned on each valve manually & they are working independently. So the water lines are not crossed. It is the wiring causing the problem. But I can't see or find any place where the casing is torn or wires are touching in the area where I fixed the water leak. How do I trace the wiring? Start digging? My back hurts just thinking about it.
Or can I test with a multimeter? Of course the system is 20 years old, maybe some new wiring is in order.