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Posted by Andy Hill on June 23, 2005, 4:03 pm
>I fix one thing another breaks. Just got my
>back flow assembly replaced last week. Yesterday morning I noticed the
>sound of water flowing through pipes in my back yard. It was my
>irrigation system. One of the selenoid valves is not closing properly.
>I know nothing about these valves assemblies. Could it be only the
>selenoid or is it likely the whole assembly? Is current supplied when
>the valve is open or closed?
>
Normally solenoid valves "fail closed" if it's the solenoid itself. I suspect
either the controller has failed (permanently sending power to that particular
zone) or the solenoid valve assembly has gone belly up. Quick check with the
voltmeter will tell the tale...
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