Display shows E9; refrigerator may not cool, or compressor may not start.

Warning: Compressor and inverter diagnostics involve high voltage. If you are not experienced, contact a professional.

• Listen for compressor: With the unit powered, listen at the back for a humming or clicking sound. Rapid clicking can indicate a start device issue.
• Inspect start device: Unplug the refrigerator, remove the rear access panel, and inspect the start relay/overload on the compressor for burn marks or rattling (a sign of failure).
• Check connections: Ensure all wires to the compressor and inverter (if present) are secure.

If the start device is visibly damaged, replacing it may restore operation. If the compressor still fails to start or the E9 code persists, the compressor or inverter board may be defective and should be evaluated by a technician.