After replacing the door lock mechanism twice (each time it would work for a while then I'd get DL errors), I decided to try the Central Control Unit. Replacing it was a snap following the AppliancePartsPros video. It has been three days and eight loads, with no failure. I'll try to remember to report back in a few months. As I understand it, replacing the wire harness would be my last hope if the DL errors return. But I cannot recommend this website enough for speed of standard shipping, pricing, great instructional videos and awesome customer service!