I just bought a new Rachio 3 Sprinkler Controller. I am trying to measure the voltages it supplies to the solenoids. When a zone is turned on, I’m measuring about 32.9 Volts AC. However, all the zones that are turned off, including zones that were deactivated through the app, measure 30.3 Volts AC. I don’t understand how or why this should be.
Just for comparison, when I measured the voltages coming out of my old BlueBird controller, when a zone was turned on, I was measuring something around 28 Volts AC, but when a zone was turned off, the output was near zero.