I noticed this AM my pump was shutting itself off. It wasn't priming. I cleaned out the skimmer & pump basket, then cleaned the lib and re-lubed the O-ring. For a while, it seemed to be trying to prime, but now I don't see any water being drawn in to the pump at all. The diverter on the suction side looks like it's "Off", but I have no idea why that would be or what might have changed.