Thanks for the response. All the programming settings did check out OK. I reprogrammed everything from scratch anyway; let's see what happens.
I have a ten year old Orbit Control Star 6 zone controller, never had any problems. Only 4 zones are hooked up. The program that has been set is running inconsistently. One day all four zones run correctly, the next day zones 1 and 2 run correctly and zones 3 and 4 never turn on. This morning zone 1 runs and zones 2, 3, and 4 never turn on. Is this behavior being caused by a bad controller or is there something else to check?
