Running a Hayward Sand Filter with a pentair challenger 2hp pump. Replaced the impeller and diffuser on the pump yesterday and when I hooked the pump back up to the timer... nothing. When I switch the mechanical timer on manually, still nothing. It's as if I have no power to the pump. I do have power to the timer. Thinking I may have missed a connection and hoping I didn't jar something loose in the motor. Anyone have any experience with these? Is it possible there's a grind to the actual motor housing I'm missing? Three wires off the pump. Blue, white, and black. The blue is wired to a blue wire coming out of the fuse panel and the white and black to the timer. What's the best way to test this?
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