D
Diane WilliamsJul 28, 2025
What to do if my HYDRO-RAIN HRC-400 display says 'Fault' and flashes a zone number?
- MMichael MartinJul 28, 2025
If your HYDRO-RAIN Controller shows a 'Fault' message and a zone number is flashing, it indicates a short. You should inspect the wiring for shorts and also check the solenoid for shorts.







