Hi

A Door Lock Error occurs if the door cannot be locked. It will try to lock it six times before displaying the error code. It has happened because Door lock mechanism is broken or removed from door. It may also happen due to Door switch/lock unit failure. To resolve the issue follow these steps---
1. Unplug washer or disconnect power.
2. Check door switch/lock unit.
3. Check the wire harness connections to the door switch/lock unit and Central Control Unit (CCU).
Hope this helps...Please post back if you need more information.

Daniel