Refrigerator has strong musty or sour odor that does not go away after cleaning.

Safety First: Unplug the refrigerator before deep cleaning interior components.

• 1. Remove all food: Discard spoiled items and clean all shelves, bins, and walls with a baking soda solution.
• 2. Clean drain system: Access the freezer drain trough and flush with a mixture of warm water and mild bleach. Ensure the drain tube is clear.
• 3. Air out the unit: Leave doors open for several hours with the unit unplugged to ventilate. Place open boxes of baking soda or activated charcoal inside.
• 4. Persistent odors: If odor remains, it may be in the insulation and not fully removable; replacement of the cabinet is not practical. Focus on regular cleaning and odor absorbers.