I have a 1 HP Challenger PAC-FAB motor. It came with the house; so it likely at least ten years old. There is a timer for the unit, but it didn't have any of the pegs to set for on and off; so I have always run it constantly during the swim season (we've been here for about eight years). I just noticed yesterday that it sounded much louder than usual. I read that this could be the capacitor gone bad, but are there other things I should look at first?