SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

I have an Irritrol Slim Dial that suddenly won't turn on any zones. I have tried to summarize the steps I have taken below.

1. Reset controller by removing power and battery from the Irritrol Slim Dial controller. (Followed steps per the user guide/manual.)

2. Confirmed the water valve is open. I can manually open the valves and get sprinklers to come on.

3. Measured voltage across the wire terminals at the controller is ~26V from comm terminal to each respective zone terminal.

4. Voltage at the solenoids is <0.02 V, even when the zone is "energized" by the controller.

Shouldn't the voltage at the solenoid from comm to valve wire be ~26V when the respective zone is energized?

Should the voltage across the terminals at the controller always be ~26V? Or should the voltage only be ~26V when the zone is energized?

Other steps or recommendations for troubleshooting are greatly appreciated.


Thank you in advance.