Display shows E9 and the interior may be warm despite the compressor attempting to run.

Safety first: Do not attempt to open the sealed refrigeration system yourself. Refrigerant handling requires certification.

• Basic checks: Ensure doors are sealing properly and that the condenser coil and fan are clean and operating. Poor airflow can mimic sealed system issues.
• Listen and feel: With the unit running, lightly touch the compressor (careful, it may be warm). It should vibrate gently and become warm but not extremely hot. Check if the condenser coil warms up after 10–15 minutes of run time.
• Check for frost pattern: If accessible, remove the interior rear panel and observe the evaporator coil after 15–20 minutes of operation. A healthy system will show even frost across most of the coil. Very little frost or only a small patch may indicate low refrigerant or restriction.
• Do not puncture lines: Never drill or cut into cabinet walls or tubing; this can release refrigerant and permanently damage the unit.
• Call a professional: E9 typically indicates a sealed system problem that must be diagnosed and repaired by a licensed refrigeration technician. They can check pressures, locate leaks, and recharge the system if repairable.