Refrigerator display shows E0, cooling performance is reduced or intermittent

Safety first: Unplug the refrigerator from the wall outlet before removing any panels or touching wiring. Do not work on live circuits.

Step-by-step checks:

• Power reset: Unplug the unit for 5–10 minutes, then plug back in. This can clear transient control glitches that trigger E0.
• Check outlet and voltage: Confirm the outlet is firmly seated and not loose. If available, use a simple plug-in tester to verify correct wiring and ground.
• Inspect control board connections: Remove the rear access cover (usually at the back near the compressor). Locate the main control board and gently press all multi-pin connectors to ensure they are fully seated.
• Check sensor harnesses: Inside the fridge and freezer compartments, locate visible sensor harness connectors (often behind small covers or near the light assembly). Make sure they are not loose or damaged.
• When to replace parts: If E0 returns immediately after a reset and wiring is intact, the fault is usually a defective sensor or main control board. A technician can read stored diagnostics to identify which sensor is out of range.

Warning: If you smell burning or see scorch marks on the control board, stop using the appliance and have the board replaced before further operation.