When turn on backflow, zone 1 start non-stop watering while other zone follow the setting. What could be wrong with my zone 1? The only way to stop zone 1 water is to shut off my water from backflow system.
I have tried the following and still not able to stop zone 1 watering:
- quick run zone 1 for 1 minute and it did not stop after 1 minute
- un-power the Rachio controller and turn it back on
- disable zone 1
- change to standby mode
please help advise what can I do to fix my zone 1. Many Thanks.