Wine cooler shows E5 and may shut down cooling or run continuously; temperature swings widely.

Safety: Disconnect power before removing interior panels or control boards.

How to proceed:

• 1. Identify model type: Confirm if your LG wine cooler is dual-zone (separate upper and lower temperature settings). E5 is common on dual-zone models.
• 2. Compare displayed temps: If one zone shows unrealistic readings (e.g., 0°C or 99°C), that zone's sensor is suspect.
• 3. Access both zone sensors: Remove interior covers in both upper and lower compartments to locate each zone's thermistor. They are usually behind small plastic covers on the rear wall.
• 4. Inspect and test sensors: Check for physical damage or dislodged sensors. Disconnect each and measure resistance at the same ambient temperature. Readings should be similar. Replace any sensor that is open, shorted, or significantly different.
• 5. Check harness routing: Ensure the upper and lower zone sensor connectors are not swapped on the main PCB. Verify each connector is fully seated and labeled correctly.
• 6. Reset control: After correcting sensor issues, unplug the unit for 5–10 minutes to reset the control. If E5 persists with known-good sensors and wiring, the main PCB likely needs replacement.

Tip: Always order sensors by full model number to ensure correct resistance curve for LG dual-zone units.