Display shows E1; refrigerator section temperature may be inaccurate or fluctuating.

Safety first: Disconnect power before removing interior panels. Avoid pulling on wires directly; use connectors.

• Visual inspection: Locate the refrigerator thermistor (usually a small plastic-encased sensor clipped to the liner wall or behind a small cover). Check for broken wires or a loose sensor.
• Check connections: Follow the thermistor wires to the connector and ensure it is fully seated. At the main control board, verify the thermistor harness is plugged in securely.
• Resistance test (advanced): With power disconnected, remove the thermistor and measure its resistance with a multimeter. At room temperature (~77°F / 25°C), most NTC thermistors used by JennAir read around 2.7–3.5 kΩ. A reading of 0 Ω (short) or infinite (open) indicates a bad sensor.
• Replace thermistor: If the sensor is out of spec or physically damaged, replace the refrigerator thermistor. Clip the new sensor in the same location and route wires as originally installed.
• Control board check: If a known-good thermistor still triggers E1, the main control board sensor circuit may be defective and should be evaluated by a technician.