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We had "Power Off" failure of the controller of our lawn sprinkler system. The controller is a "Rain Bird ESP-6PM. The transformer was confirmed as being O.K. We changed tDhe fuse, albeit the old one tested as OK. We also changed the after which t he "Power Off" signal turned off. The problem no w is the system station valves do not turn on. We have entered the desired program. Any suggestions ? Thank You!! Robert Wood

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  • Robert H Wood Aug 25, 2010

    How?

  • Robert H Wood Aug 25, 2010

    The problem is in fact the circuit board. The valves tested O.K. By bypassing the timer and connecting 24 VAC, directly too them one at a time. I am replacing the timer. I only have to figure out how to wire in the WRC wireless rain sensor. THat should be fairly easy. Thanks, Robert

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Www.rainbird.com/pdf/turf/man_ESP.pdf
Your manual is above.
Now that Power failure you had, maybe have an underlying problem, First you need to try and reset the unit, as per the manual, and try resetting up the program parameters again, and seeing if it would then work? Right, now if it still will not work, after doing this, then I am afraid that the Power Supply switching semiconductor devices, that drive the solenoids that open the valves that let the water flow, are damaged, that, or the Power supply, has failed in the section that supplies the extra current to drive the valves. or, It simply may have suffered a power spike? and this also would account for symptoms such as these, too.
If it is proved to be internally faulty, you really have no alternative but to return it to the manufacturer for repair, as you will most likely need to replace the driver board.

Posted on Aug 25, 2010

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Reset the system programming.

Posted on Aug 25, 2010

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