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What can fail in the valve
I have one zone not working (it has worked for 10 years). I verified I have water to it and voltage. I replaced the solenoid. Is there something inside the valve body itself that can fail? Is replacing the whole valve/solenoid assembly my next step? It is a Weathermatic valve that was added on to an existing system about 10 years ago.
diaphragm
should not be that difficult.