Question
The only zone that works on the timer is zone 6.
have any idea how get zones 1-5 to work on the timer?

Answer
Please provide the following information.

Is the system brand new?

If not how old is the system and when was the last time it was fully functional?

Has there been any work done in the yard or around the house or in the house around the time the issue started.

Has anyone tried to service the system around the time the issue started?