Refrigerator display shows E1 and fresh food (refrigerator) compartment temperature is inaccurate or fluctuates.

Safety First: Disconnect power before accessing internal panels or wiring.

Steps:

• Locate the refrigerator sensor: The fresh food thermistor is usually behind a small plastic cover on the rear or side wall of the refrigerator compartment.
• Inspect the sensor and wiring: Remove the cover, gently pull out the sensor head, and check for cracked insulation, corrosion, or broken wires.
• Check connector at PCB: Access the main control board at the back of the unit and verify the thermistor harness is fully seated in its connector.
• Basic resistance check (if you have a multimeter): With the refrigerator unplugged, disconnect the thermistor and measure resistance across its leads. At room temperature (~25°C / 77°F), most Midea NTC thermistors read around 5k–10k ohms. A reading of 0 ohms (short) or infinite (open) indicates a bad sensor.
• Replace if faulty: If the sensor is out of spec or physically damaged, replace it with a compatible Midea refrigerator compartment thermistor. Route the new sensor in the same path and reinstall the cover.
• Reset and test: Restore power, clear the error (if the model allows), and monitor temperature for several hours.