IceKing ice maker displays E12; unit may shut down with an audible alarm, often related to low ambient temperature.

Safety first: Unplug the unit before accessing sensor wiring.

Step-by-step checks:

• 1. Verify installation location: Ensure the IceKing ice maker is not installed outdoors or in an area below the minimum ambient temperature specified in the manual.
• 2. Locate ambient sensor: The ambient thermistor is often mounted near the air intake grille or behind the front panel.
• 3. Inspect wiring: Check that the sensor harness is intact and firmly connected to the main control PCB.
• 4. Check for drafts: Avoid placing the unit where cold drafts or direct sunlight can affect the sensor reading.
• 5. Replace sensor if needed: If E12 persists in a proper environment with good wiring, replace the ambient temperature sensor.

When to call a technician: If you cannot locate the sensor or need resistance measurements to confirm failure, a technician can test and replace the component.