Frost buildup on food packages and along interior walls

Safety first: Avoid using sharp objects to remove frost.

• Check gasket seal: Inspect and clean the door gasket. Replace if torn or hardened.
• Improve usage habits: Allow hot food to cool before placing in the freezer and keep items covered.
• Limit door openings: Reduce the frequency and duration of door openings.
• Test door switch: Ensure the interior fan stops when the door is open. Replace the Hitachi door switch if it fails.
• Manual defrost: If frost is heavy, perform a full manual defrost to restore normal airflow.