Hi, I have a rainbird esp 12-lx. The problem im have is trying to find out where the rain sensor is connected at. Cause its not connected at the controller main board. those connectors are jumped per the manual ( for no rain sensor ). Also the mv or (main valve) has nothing connected to it. Really the only connections are two common and 1 thru 10 for the zones. Plus the power source of course. Do you have an idea where the rain sensor is connected. Its an old hunter mini click its connected to one wire coming up out of the ground on the outside of the house pretty much in the same location as the control panel on the inside of the same wall. Thanks for your time.