If you’re having a problem with your reticulation controller it’s worth trying a factory reset.
This drops all programming and brings the retic controller back to factory default. Different brands and even individual models of the same brand controllers have ways of resetting. Your irrigation / reticulation controller manual should list how to reset the controller.
This info from Hunter relates to their most common models.
Still stumped with your retic problem in Perth then give us a call on 9246 0111.