Could a failing Drain Pump Motor Assembly cause the LG LUDT6678SF to have symptom: Not Draining Error Oe?

The synchronous drain motor utilizes a permanent magnet rotor that can lose torque or become mechanically jammed by fine debris. If the impeller cannot achieve the required RPMs to overcome the head pressure of the drain line, the water remains in the sump, triggering the OE timeout. Replacing the pump restores the centrifugal force necessary to evacuate the tub.

Could a failing Drain Hose cause the LG LUDT6678SF to have symptom: Not Draining Error Oe?

Corrugated drain hoses are susceptible to internal bio-film buildup or physical kinking, which increases backpressure beyond the pump's design limits. A restriction in this line causes fluid velocity to drop to zero, preventing the pressure switch from resetting. A new hose ensures an unobstructed path for waste-water flow.

Could a failing Check Valve (Drain) cause the LG LUDT6678SF to have symptom: Not Draining Error Oe?

This rubber flapper prevents dirty water from back-flowing into the machine after a cycle. If the material degrades and becomes rigid or swells, it can pin itself shut or fail to open under pump pressure, effectively sealing the drain path and causing the OE fault.

What is the most likely root cause for a LG LUDT6678SF with symptom: Not Draining Error Oe?

The synchronous drain motor utilizes a permanent magnet rotor that can lose torque or become mechanically jammed by fine debris. If the impeller cannot achieve the required RPMs to overcome the head pressure of the drain line, the water remains in the sump, triggering the OE timeout. Replacing the pump restores the centrifugal force necessary to evacuate the tub.

LG LUDT6678SF Not Draining Error Oe

🛒 Replace Entire Unit 🛠️ Hire a Pro

CONF	DIAGNOSIS	ACTION
91% CONF	Drain Pump Motor Assembly The synchronous drain motor utilizes a permanent magnet rotor that can lose torque or become mechanically jammed by fine debris. If the impeller cannot achieve the required RPMs to overcome the head pressure of the drain line, the water remains in the sump, triggering the OE timeout. Replacing the pump restores the centrifugal force necessary to evacuate the tub. SKU: ABQ73503004	VIEW ON AMAZON #CommissionsEarned
5% CONF	Drain Hose Corrugated drain hoses are susceptible to internal bio-film buildup or physical kinking, which increases backpressure beyond the pump's design limits. A restriction in this line causes fluid velocity to drop to zero, preventing the pressure switch from resetting. A new hose ensures an unobstructed path for waste-water flow.	VIEW ON AMAZON #CommissionsEarned
4% CONF	Check Valve (Drain) This rubber flapper prevents dirty water from back-flowing into the machine after a cycle. If the material degrades and becomes rigid or swells, it can pin itself shut or fail to open under pump pressure, effectively sealing the drain path and causing the OE fault.	VIEW ON AMAZON #CommissionsEarned

DIY Repair Guide

Watch exactly how to replace the Drain Pump Motor Assembly.

// NOTICE: This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.

PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.

INITIALIZING SWARM...

OPERATIONAL LOG

PARTSNIPER

LG LUDT6678SF Not Draining Error Oe

DIY Repair Guide