IceKing ice maker displays E10; unit may shut down with water remaining in the reservoir.

Safety first: Unplug the ice maker before working on the drain system. Water may spill; have towels ready.

Step-by-step checks:

• 1. Inspect external drain hose: Follow the drain hose from the back of the unit to the floor drain or sink. Straighten any kinks and ensure the hose is not elevated higher than recommended.
• 2. Check for clogs: Disconnect the hose from the drain and blow through it or flush with water to confirm it is clear.
• 3. Access drain pump: Remove the lower rear or front panel to locate the drain pump. Look for debris in the pump inlet or housing.
• 4. Clean pump area: Remove any visible obstructions such as ice chips, scale, or foreign objects from the pump and drain tray.
• 5. Test pump operation: With panels reinstalled, plug in the unit and start a cycle that should trigger draining. Listen for the pump running. If it hums but does not move water, or is silent, the pump may be faulty.
• 6. Replace pump if needed: If the hose is clear and the pump does not operate correctly, replace the drain pump assembly.

When to call a technician: If the drain line is hard-plumbed into building drainage or if you suspect a backflow issue, professional service is recommended.