I've been running my air all summer long, until this month, as it has cooled off a bit. We turned it off, and the sump pump that has a pvc pipe that runs to the front of the unit is going off non stop now. It starts a loud noise about every 5 minutes. I put my hand on the pipe going from the unit, and can feel it vibrating. I know that AC produces excess water, but I never noticed it pumping out constantly like this. If anyone can give me some guidance that would be great. Thank you.