Display shows E2 and the refrigerator compartment light or control panel may behave erratically.

Safety: Unplug the refrigerator before accessing any control panels or wiring. Avoid static discharge to the control board by touching a grounded metal object first.

How to proceed:

• 1. Identify the ambient sensor: On many Haier models, the ambient sensor is located near the top front of the cabinet, behind the display panel or in the hinge area, sensing room temperature.
• 2. Remove the display/hinge cover: Carefully pry off the plastic trim or remove screws to access the sensor. Do not pull on the wiring harness.
• 3. Inspect the sensor: Check for broken leads, corrosion, or signs of moisture. Ensure the sensor is not dangling loose; it should be clipped in place.
• 4. Test resistance: With power disconnected, unplug the sensor from the harness and measure resistance with a multimeter. Compare to the NTC chart for your model at room temperature. Replace if open, shorted, or out of range.
• 5. Check harness to PCB: If the sensor tests good, verify continuity from the sensor connector to the main PCB. Repair or replace any damaged harness sections.
• 6. Replace faulty components: Install a new Haier ambient temperature sensor if needed. If wiring and sensor are good but E2 remains, the main control board may require replacement.

Tip: After repair, allow several hours for the control to recalibrate to room conditions.