If you select spin only, does it do the spin on it's own?
OK, thanks for that.
I take it that it also fails on a wash program and not just the rinse?
E66 indicates a fault in the heater circuit.
Unplug the appliance.
Take the rear panel off.
At the bottom rear of the tub is the heater, it's held by a single nut.
Unplug the wires from the heater and insulate the wires.
Tape them out of the way of the belt.
Now try the machine on rinse and spin.
Does it work?
Let me know if there's no back panel.
There are 2 cases, one has a back panel, the other needs the rear half of the cabinet removing.
OK, for your machine.
Take the top off.
Take the bolts on the rear off.
Take the bolts along the side rails at the top out (mark where they fit).
Take the hidden bolts on each side, centre bottom, out.
Unclip the plastic part that carries the power lead and water connection.
Now pull the rear half off.
Remove the wiring as previous.
Try the machine again.
Let me know what happens.
Unfortunately it goes to the pressure switch and the control board.
It's on a multiplug and can't be disconnected easily.
Don't tip it on it's side or upside down.
Water can get to parts you don't want it to get to.
It can be done from underneath is you are extremely thin and flexible, but it's very awkward and getting the wires back on would be a nightmare.
It really doesn't take that long to take the bolts out and take the rear half off.
No problem, just post when you can.
Yes, you've got it right. Try a new element in it, see if it cure the fault.
If it doesn't, I'm afraid it's the main control board according to the service manual.
Good luck with the repair.
Hope this helped