the key is patience. Here is what worked for me:
0. open the door (mine is a front loader).
1. press "allergy rinse" and "spin selection" and keep them pressed.
2. turn knob to the left on "Perm Press cold".
3. wait for a single beep. the error "E:" keeps flashing.
4. turn knob to "off", and let go of the buttons.
5. do nothing. Get a coffee or something.
After a while the error cleared and the washer now works.
DeeBee23
June 2018