Display shows E0 and refrigerator may not cool correctly or settings cannot be adjusted.

Safety first: Unplug the refrigerator from the mains before removing any panels. Do not work on live circuits.

Step-by-step checks:

• Power reset: Unplug the appliance for 5–10 minutes, then plug back in. Sometimes E0 is a transient communication error.
• Check for moisture: Inspect the control panel area for condensation or water ingress. If wet, leave unplugged with the door open for several hours to dry, then test again.
• Inspect display harness: Remove the control panel cover (usually clipped or screwed from inside the door frame). Check the ribbon cable and connectors between the display and the main harness. Reseat all plugs firmly.
• Check for damage: Look for burnt spots, corrosion, or cracked solder joints on the user interface PCB. If present, the board should be replaced.
• Replace suspect parts: If reseating cables does not clear E0, replace the user interface PCB first. If the error persists, the main control board may also need replacement.

When to stop: If you smell burning, see arcing, or are unsure about handling electronics, stop and contact a qualified technician.