Having an issue. Bought a used C-BeanXL. Everything tested out fine when i picked it up. Brought it home. Re wiring it and got to the point of testing. Its a cheap spindle with power inverter. I have it on a 120V outlet. Seems it be only getting 4.5v to the motor. It has a dial potentiometer and it does not seem it make a difference turned either way. I couldn't get the spindle to move at all, then i switch the ac line and neutral on the inverter and it made the spindle spin but very slowly. You see anything wrong? The whole panel is aluminum, im not sure if that matters or not.