Frost buildup on food and shelves in the freezer, not just on the back wall.

Safety first: No electrical work required.

Steps:

• Inspect gasket: Replace torn or deformed freezer door gaskets.
• Check door closure: Ensure bins and shelves are not preventing the door from closing fully.
• Cool food first: Allow hot or warm food to cool before placing in the freezer.
• Defrost: Manually defrost the freezer to remove existing frost, then monitor for recurrence.