E9 displayed, alarm beeping; temperature may be far from setpoint for an extended period.

Safety: Unplug the unit before cleaning or accessing the rear compartment. Do not attempt to open the sealed refrigeration system yourself.

Steps:

• Check door seal and usage: Ensure the door is closing fully and the gasket is intact. Avoid frequent door openings while troubleshooting.
• Clean condenser: Pull the cooler away from the wall. Remove the rear lower panel and gently vacuum dust from the condenser coil and surrounding area. Use a soft brush to avoid bending fins.
• Verify condenser fan operation: With the panel off, restore power and observe whether the condenser fan runs when the compressor is on. If not, test and replace the fan motor.
• Check ventilation: Ensure there is adequate clearance around the cooler as specified in the Zanussi installation manual. Poor ventilation can cause high temperatures and E9 alarms.
• Monitor temperature: After cleaning and ensuring proper airflow, allow 12–24 hours for the temperature to stabilize. Use an independent thermometer to verify cabinet temperature.

Important: If the compressor runs continuously, the condenser is clean, the fan works, and the unit still cannot reach set temperature, a sealed system issue (refrigerant leak, restriction, or weak compressor) is likely. This requires diagnosis and repair by a certified refrigeration technician.