I have a 3 month old Pentair Whisperflo 3/4HP pump that was working great up until this morning. I went out to turn the heater on and there was no water in the basket. I shut it off and the water that was in the basket was probably 110 degrees and the pump body was really hot. Water flow isn't blocked and it does pull water up that I put in the basket with the hose but it won't prime. Any advice?