When pump came on this morning, it was struggling to fill the pump basket. I put in spa mode and it ran fine. Back to pool mode and no suction. I use a hose on the suction side outlet where the cleaner used to be attached, and after manual adjusting the valve that goes between the skimmer and suction side cleaner it started to run when mostly taking a suction on cleaner outlet. When I inspected the skimmer hole was almost empty, and the plastic flapper appeared to be stuck closed blocking the flow of water. Some playing around with it, and everything appears to be working now. Is this a common issue? We did just have high winds.