Hotpoint washes, drains, turns ok but doesn't do fast spin?

Washing machine does everyting including turning during wash, but doesn't do fast spin. I'm experienced with fixing our washing machines in the past, but would appreciate advice on this problem.
Since the brushes allow the motor to work during wash cycle, I suspect that the controller is at fault.
Any thougts?

Hotpoint Aquarius Extra (WMA34)