OpenSprinkler › Forums › Hardware Questions › 24VAC solenoid won’t turn on opensprinkler only reports 20mA › Reply To: 24VAC solenoid won’t turn on opensprinkler only reports 20mA
May 24, 2020 at 8:45 am #66339
– Voltage should be measured as AC (not DC) voltage between COM terminal and any zone port.
– When a zone is off, the AC voltage measured is stray voltage and doesn’t matter (it may or may not be 0, but it doesn’t matter).
– When a zone is on, the AC voltage measured should be close to the power supply voltage (about 24VAC).