E3 appears on the display; unit may run briefly then shut down, or never start the ice-making cycle.

Safety first: Unplug the ice maker before removing any panels or touching internal components.

Steps to resolve E3:

• Access the evaporator area: Remove the top or rear cover to expose the evaporator plate or grid where ice forms.
• Locate the evaporator thermistor: It is usually clipped or taped to the evaporator surface with two small wires leading to the control board.
• Check mounting: Ensure the sensor is firmly attached to the evaporator. If it has fallen off, reattach it using thermal tape or the original clip so it makes good contact.
• Inspect wiring and connector: Look for cuts, kinks, or corrosion. Reseat the connector at the PCB.
• Test the sensor: With a multimeter, measure resistance at room temperature and compare to NewAir specifications. An open or shorted reading indicates failure.
• Replace if needed: Install a new evaporator thermistor if the original is out of spec or physically damaged.
• Reassemble and test: Restore covers, plug in, clear the code by power-cycling, and run a full cycle to confirm normal operation.