Plug the machine back in and try it again.
If it still comes up with LE, unplug it and take the rear cover off.
Check the plugs to the motor, unplug them and plug them back in.
Try the machine again.
If it still fails then you'll need to begin replacing parts.
The motor and/or the control board are possible faults.
You could try changing a part in the motor, the Hall Sensor.
To change the sensor;
Unplug the appliance and take the rear cover off.
Take the nut/bolt/screw (depending on the type used) from the centre of the motor.
You'll need to hold the drum while you undo this.
Take off the rear half of the motor, the part with the magnets, this may require some manouvering, while pulling it off.
Disconnect the cords attachment screws
Take the 6 bolts out of the motor and take the motor off.
Take the hall sensor off of the motor.
Fit the new hall sensor.
Reassemble the motor.
Once all back together, restore the power and try again.
Be careful when reassembling the motor, the magnets have a strong pull.
Click here for the Hall Sensor. It's on Ebay so double check with the supplier that this fits your appliance.
If you are not in the UK, just use Google to search for the part, 6501kw2001a, in your country.
Hope this helps
Let me know how it goes or if you need more help