Things that I tried so far...Preliminary diagnosis - blockage in piping
1. Unplug the transformer and battery to verify if any of the valve is faulty; however, I don't see anything out of the norm as indicated in the manual.
2. Check the voltage with a voltmeter and it reads 26V (instead of 24V as indicate by the Irritrol representative)
3. Turn on each valve at the bleeder screw and nothing happens. But I heard the solenoid sounds as if it's working. I turned the bleeder screw to the max, but I still can't see anything. No water even drippling from these screws. Therefore, the technical representative thinks that there is a blockage in the piping somwhere.
How do I check the location of blockage?
That's very strange for all valves to blow at once. Where can I check the fuse? Is there another location (besides the controller and the valve) that can control all of these sprinkers. Some of the kids in my neighborhoods are very naughty, so I am not sure if they turned off certain thing without my knowledge.
Please help. Thanks again.
This post has been edited 1 times, last edit by "ikpicachu" (Mar 25th 2010, 1:31pm)