Comment on Vigoro 3015V Sprinkler Timer Internals and Valve Design by Mike Ruth.

Vigoro 3015V Sprinkler Timer Internals and Valve DesignJonC great website. I used a razor knife and just got mine open. The 9 volt battery was just replaced and the display and all buttons work except the on off bottom button. However I am able to put the 9 volt battery on the terminals and by moving the white gear with my fingers I can sometimes get the pin to move either to close or open the valve. But it is very random not sure what I can do to further diagonize this issue. Any suggestions? Could it be that resistor or capacitor on top of the motor where the red and white wires lead into the selonoid? Or possibily it needs oiled or a new selonoid?

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