What is the machine doing when the error comes up?
Does it empty the water?
Does the drum turn?
If you set it to spin does it spin?
Unfortunately 3E indicates a fault with the motor.
Unplug the appliance and take the rear cover off.
Check the plugs and the wiring to the motor.
If these check out ok, check the motor connections at the main control board.
If everything looks to be ok you would need to begin changing parts on a "fit and see what happens" basis.
Unfortunately these are probably the most expensive parts on the appliance.
The service manual suggests that the motor is the most likely part.
good luck with the checks.
Hope this helps
Let me know how it goes or if you need more help
Sorry, the service manual doesn't give that information.
It is perfectly possible that the test programme ignores the Hall sensor.
Before replacing any expensive parts it may be worthwhile fitting a new hall sensor (if you can obtain one) on a "fit and see what happens" basis.
The alternative is replacing the motor and possibly the control board too.
Good luck with it.