I didn't know where to put this so I hope this is the right place. But, I have a FX5 I've had it approx 2 years. I had to replace the plug on it because it had a short, but ran fine for about 3 months. I came home around a month ago to it pulsating over and over and over. So I cleaned it out, took off the motor cleaned the impeller, still nothing. Well tonight I decided to mess around with it again and did everything over, took all medi out and it's still doing the same thing. Anyone have any idea what is going on with it or do you think it's just at the end of its life? I bought it used so idk how old it actually is. Any help would be great