I'm having a similar problem except only zone 1 (Rainbird ESP-6TM) comes on no matter which zone is selected. I've checked the voltages and, regardless of which zone is selected, only zone 1 is getting voltage so I don't think this would be a valve problem. Has my controller gone bad?
I have a question for you Mobike. Do you have this problem when the controller starts with the scheduled program or is it happening just when you try to start it manually?