This is a dc motor and the board to the right as you look from the back is the control module and has live high voltages on metal heat sink!.BE CAREFUL!!!!
Could be motor,dc module,control pcb
common issue is broken wire from control module to the motor.wiggle wires where they go in to the connector block that then plugs in to the motor.loose/broken wire here will cause no fast spin
ck
November 2010