What # filters do you run? If you have something too tight on the suction side it will kill any pump. How's your wiring? Too much voltage drop in the wiring will cause the pump to pull excess amps and shorten it's life. Is it blowing fuses? What size fuse are you using? Is the suction line clear and free flowing? Drawstraw? What size suction line? Have you talked with FASS' tech support? They should be walking you through what to check.
In response to khaoskustoms' comment as a general FYI: FASS uses at least an "A" (larger displacement IIRC) and a "B" (smaller IIRC) actual pump, and at least two motor sizes. If you use the A pump with the little motor (150GPH) you can get good flow, but the motor isn't big enough to reliably handle high pressure. The little motor is fine at high pressure with the little pump (95GPH). To get the high pressure and high flow you need to use a larger motor and a larger pump.
The 220 should be the larger motor so that should not be the problem, but it is worth checking as sometimes things can accidentally get incorrectly boxed.