Ice maker runs but does not produce ice, display shows E03 indicating low refrigerant or sealed system issue.

Important: Sealed system work on Zanussi ice makers must be performed by an F-gas certified refrigeration technician. Do not attempt to open the sealed system yourself.

• Basic checks first: Ensure the condenser coil is clean and the condenser fan is running. Poor airflow can mimic low refrigerant symptoms.
• Check ambient conditions: Verify the ice maker is installed in a room within the specified temperature range in the Zanussi manual. Very hot rooms reduce ice production.
• Inspect for oil stains: Look around the compressor, condenser, and visible tubing for oily residue, which can indicate a refrigerant leak.
• Monitor frost pattern: With the rear panel removed and the unit running, a technician will inspect the evaporator coil. Frost only on a small section usually indicates low charge or restriction.
• Call a professional: If E03 persists after cleaning and airflow checks, contact an authorized Zanussi service center. They will locate leaks, repair the system, evacuate, and recharge with the correct refrigerant type and weight.