Question
Just purchased home and sprinkler sys not working thru the Rain Bird controller, works thru manual bleed valve. Check volts at controller zones, is 26V. At the wire end to the solenoid it's 2V. ?

Answer
Hey bill, if you checked the voltage at the solenoid, was the solenoid connected or not connected? If your only getting 2 volts and the solenoid is not connected, then you have a bad wire. You need to find the break in the wire, or run a new wire. Good luck and have a great day.