Eugene D Girard , KS January 17, 2015 Appliance: LG Dishwasher LDF6920WW Lg Dishwasher Ldf6920ww: Le error code bad motor. How to replace Dishwasher Circulation Motor. Replaced it. Simple process, just takes labor removing the inside parts connected to the motor and also pulling out the dishwasher and setting it on it's side. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes