E2Whirlpool Refrigerator — Whirlpool Refrigerator E2 Error Code
Fresh food (refrigerator section) temperature sensor failure
E2 indicates the fresh food compartment thermistor has failed. This sensor is located inside the refrigerator section — often near the air damper or on the back wall — and reports the actual temperature to the control board. When it fails, the board loses the ability to regulate the damper that controls how much cold air flows from the freezer into the fridge section. The refrigerator may run excessively cold and freeze food, or it may not cool at all, depending on which fail state the damper defaults to.
Unplug the refrigerator and locate the fresh food thermistor (check the back wall of the refrigerator compartment, often clipped near the air inlet). Disconnect the sensor and measure its resistance with a multimeter — at room temperature it should be approximately 5,000–16,000 ohms depending on the model spec. Replace the sensor if out of range. If resistance is normal, inspect the wiring harness between the sensor and the control board for damage or loose connections.