i have 3 zones, and the 3rd one suddenly stopped working--when i turn the little wheel on the valve, a tiny bit of water comes out of a few of the sprinkler heads, but that's all. when i close it again, nothing comes out. i have a control pad that i lost the instructions to, so in order to use the pad at all, i have to turn it to "manual" and then hit start to get the program run, which usually works ok. the other zones are fine. i dont know much at all about this system, could anyone maybe tell...
