erratic voltage at the controller

14 years ago

I have a 12 zone Hunter Pro C with Irritrol valves. I have erratic controller voltage and my valves are behaving oddly with only #10 working. I tested 3 solenoids at the controller - they are good. I am not getting voltage at the valves except for #10. The controller seems to be trying to run zones simultaneuosly, but even those that have normal voltage like #9 (I think) don't operate. Is this a wiring problem (no digging done recently) or a controller problem?

Here is each of my zones set to run followed by voltage for every zone output at the controller. Readings are stable unless noted otherwise.

#1 28,28,28,28,28,26,4,0,0,0,28,.5

#2 28,28,28,28,28,26,4,0,0,0,28,.5

#3 26,26,26,26,26,23,4,0,0,0,26,.5

#4 26,26,26,26,26,25,4,0,0,0,26,.5

#5 26,26,26,26,26,25,4,0,0,0,26,.5

#6 8,8,8,8,8,26,2,0,0,0,9,.2 - zones 1-5 very jittery

#7 .4,.4,.4,.4,.4,.7,26,0,0,0,.4,0

#8 .4,.4,.4,.4,.4,.7,.7,26,0,0,.4,0

#9 .3,.3,.3,.3,.3,.6,.6,0,26,0,.4,0

#10 .2,.2,.2,.2,.2,.5,.7,0,0,26,.3,0

#11 26,26,26,26,26,23,4,0,0,0,26,.5

#12 .3,.3,.3,.3,.3,.7,.7,0,0,0,.4,26

Comment (1)

lehua49
14 years ago
I don't know much about the Hunter Pro C. I hope it is under some kind of warranty and installed by a contractor you can call and check it out at no cost. That being said, here is what I would try: If zone #10 is the only one working properly, I would try each valve one at a time at the #10 terminal. If all 12 valves operate without a problem, then the controller has an internal problem with the modules. Check the operating manual and make sure your modules are install in the correct slots. If you are operating any extraneous items that take more complex operation or programing of the controller, remove those. In essence get back to one zone that operates properly with one solenoid valve and work that way until you experience problem and can isolate the module giving the problem. Carefully read the manual and understand what to do in increments. Aloha and Good luck.
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