I'm not an authorized servicer for any brand.
I have never worked on any LG, but I am sure the day will come.
Please keep us updated as to what you end up doing to correct the problem.
I have a 54 mile one way drive to this call and I'd appreciate all the help that I can get.
That sucks, to bad it so far away.
It is calls like this were we learn new things on that help us become better techs.
After all what fun would it be if we just replace motor couplers all day, day after day.
Good luck with the repair,