Im not certain where to post this question so ... here goes
I have an irritrol rd600 system in my house with 3 zones.
Zone 1 (front yard) stopped functioning but the other zones worked.. i used a multimeter to check the output of the controller / timer and I get the same output on each of the zones.. approximately 20 - 24vAC when the timer tells each zone to turn on (this is relative to the vc (common) terminal.
I checked at the valve and it was a little low so i changed wire connections and it improved ( zone comes on most of the time...
My question is - is the system SUPPOSE to be outputting AC or DC to the valves...
The valves chatter - this is likely because they are getting AC from the controller...
Im guessing the controller should be outputting DC?
Can anyone tell me what their system does on these terminals..