Have a DSS350, original issue was tilt and SS would slow down and quit after 5-6 cycles. The Lift motor will run normal speed,tilt works fine but after 5-6 cycles,the lift motor starts to slow down and eventualy just idles. didnt check amp draw yet. suspected may be the lift driver card,swapped it with a known good card. cycled tilt and after 3-4 times the card started smoking and burned out. Suspect the IGBT transistor is shorted.. any ideas ??