I used a 500w power converter 120v to 220v for the same power adapter that coming with the Rachio G2 controller.
My problem is when I receive the signal in zone 2 valve it showed 15v only (it should be 24v) , the 24v ac solenoid valve not functioning. The wiring distance between the Rachio and the valve in zone2 is 70m. The zone one is 15m and working fine.
I used 14 gauge copper wire for the common and the zones.
I want to solve the voltage drop on zone 2 wire