IceKing ice maker displays E20; unit may not start a cycle and internal lights may flash.

Safety first: Unplug the ice maker before adjusting or replacing switches.

Step-by-step checks:

• 1. Locate door/bin switch: The door or bin switch is usually near the top of the bin opening or behind the front panel.
• 2. Check alignment: Ensure the door or bin closes fully and engages the switch or magnet. Adjust hinges or latches if needed.
• 3. Inspect switch: Press the switch by hand and listen for a distinct click. If it feels loose or does not click, it may be faulty.
• 4. Verify wiring: Confirm the switch wires are intact and connected to the control board.
• 5. Replace switch: If E20 persists and the switch does not operate correctly, replace the door/bin switch assembly.

When to call a technician: If the switch is integrated into the control panel or requires complex disassembly, professional service is recommended.