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Tuesday, May 28th 2019, 7:27am

Sprinkle system zoning issue

I have 14 zone sprinkle system. This year after I open the system after winterizing, i noticed 6 of the zone are working well however the rest are not working.
I measure the voltage at the controller and for the working 6 zones the voltage is 24 volts when it is on, but for the remaining zones (not working ) the voltage is 25 to 27 volts in on and off position. Can anyone help diagnose the problem.

Thank you in advance.

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