Magic Chef freezer displays E2 and may run continuously or not maintain proper temperature.

Safety warning: Always disconnect power before accessing internal components. Sharp metal edges are present around the evaporator area.

Steps to diagnose and fix:

• Defrost the unit first: If there is heavy frost, unplug the freezer and leave the door open for several hours or use a hair dryer on low (kept moving and away from plastic) to melt ice around the evaporator cover. Do not chip ice with sharp tools.
• Access the evaporator area: Remove baskets and shelves. Unscrew and remove the rear interior panel to expose the evaporator coil and sensor.
• Locate the evaporator thermistor: It is usually clipped to the evaporator tubing or mounted on a bracket near the coil with two small wires leading to a harness.
• Inspect for damage: Look for broken insulation, corroded connectors, or a sensor that has come loose from the coil.
• Test the sensor: With the freezer still unplugged, disconnect the thermistor and measure resistance with a multimeter. At around 32°F (0°C), many NTC sensors will read roughly 15k–30kΩ (consult the tech sheet if available). An open or shorted reading indicates failure.
• Check wiring to the control board: Follow the harness to where it plugs into the main control board (often in a control box at the top or rear). Ensure the connector is fully seated and not corroded.
• Replace the evaporator thermistor if defective: Clip the new sensor in the same location on the coil, route the wires along the original path, and secure them with zip ties away from sharp fins.
• Reassemble and test: Reinstall the evaporator cover and shelves, plug the unit back in, and monitor for several hours. The E2 code should clear once the board sees a valid sensor signal.

Note: If E2 persists with a known-good sensor and wiring, the main control board is likely faulty.