HOTPOINT AQUARIES WM63 , NO SPIN SPEED- MOTOR WORKS OK ON WASH, BRUSHES LOOK OK.

sounds like motor brushes. physically check your motor for black power, that's a sure sign of brush wear. could be seized bearings, try spin the barrel of the washer by hand, if it's stuck/very hard to turn, thats a sure sign of bearing seizure.

I would try the brushes before replacing the motor, or you may have a broken wire. Before attempting any repair unplug the machine from the mains. The brushes on these motors are held in with 2 screws and although it may be a bit awkward they can be changed while the motor is still attached to the machine, but it will mean tilting the appliance so it is resting against something rather than just proping it up . For Hotpoint WMA workshop manuals click here

Try changing motor brushes, this is most likly problem. You will need to remove motor to do this. Cost if you do them yourself is about £18.00

I would suggest you check the brushes in the motor, as it sounds like they are worn out.
Replace them if they are less than 3 or 4 mm long
This would give you the symptoms you are describing.
Please rate my solution.
Thankyou.

I AM NOT A MECHANIC, BUT IT SOUNDS LIKE YOUR MOTOR COUPLING NEEDS TO BE REPLACED.

everything you have described points to a blocked pump,worth blowing down the clear pressure pipe from the switch end while your in there to make sure thats clear!

Belt loose or motor / motor control board possibly defective

have you checked to see if the brushes on the motor need changing these wear down after alot of use over time.

if replacing the brushes has not fixed then its most likely the motor is duff.

some times when there is no motor action people think the machine has stuck try a set of brushes you must diconnect from the electrical mains first if unsure call an expert you can not put a price on safety