Condensation or frost forming on the back wall inside the cabinet.

Safety first: Unplug the unit if you need to manually defrost heavy frost.

Steps to manage frost:

• Check door seal: Inspect and, if necessary, replace the door gasket to ensure a tight seal.
• Adjust temperature: Raise the set temperature slightly to reduce frost formation.
• Defrost: If frost is thick, unplug the cooler and allow it to defrost completely. Do not use sharp tools to remove ice.
• Reduce humidity: Avoid placing open liquids inside and minimize door openings in very humid conditions.