LG Washer Repair drum wont turn

I have an LG washing machine, model number WM2277HW. The drum will not turn. It starts to load water but then the drum does not turn and it also will not drain the water that it has now added. There is a humming noise and after approximately 5 minutes the LE code appears. I replaced the drive motor stater assembly part AP4438648 (4417FA1994G) and the rotor assembly part AP4438635 (4413EA1002B). What should be the next step?