Thomas D San Diego , CA May 08, 2020 Appliance: LG Dishwasher LDF8072ST Lg Dishwasher Ldf8072st / : LG dishwasher not draining error oe showing. How to replace Drain Pump. Checked drain tube, not blocked or water in it. So I guessed it might be the pump. Bought a new pump, installed in about 30 minutes and it works like a champ. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes