Display shows E8 and the compressor may not start or may run erratically.

High-voltage safety warning: The compressor and inverter operate at mains voltage and can store charge. Unplug the refrigerator and wait several minutes before touching any components. If you are not experienced with high-voltage electronics, contact a professional.

Steps:

• 1. Listen for compressor: After plugging in, listen at the back. If the compressor does not attempt to start and E8 appears, a control or inverter issue is likely.
• 2. Access rear compartment: Remove the rear lower cover to expose the compressor, inverter module (if separate), and main PCB area.
• 3. Inspect wiring: Check the multi-pin harness between the main PCB and the inverter/compressor module. Look for loose plugs, corrosion, or damaged insulation. Reseat all connectors firmly.
• 4. Check for burn marks: Examine the inverter board for burned components or a burnt smell. If present, the inverter board should be replaced.
• 5. Verify supply voltage (advanced): With extreme caution and proper tools, a technician can verify that the inverter is receiving correct AC supply and control signals. This is not recommended for untrained users.
• 6. Replace suspect board: If wiring is intact and E8 persists, replace the compressor inverter board first (if separate). If the error remains, the main control board may also need replacement.

Important: Do not attempt to open or repair the sealed compressor. If the compressor itself is locked or shorted, it requires professional replacement.