Refrigerator has a strong musty or sour odor that persists after basic cleaning.

Safety: Unplug the refrigerator before deep cleaning. Use non-abrasive cleaners and good ventilation.

Steps:

• Empty and clean: Remove all food, shelves, and drawers. Wash interior surfaces with a solution of baking soda and warm water.
• Clean drain: Flush the defrost drain with a mild bleach solution (1 tablespoon bleach per quart of water), then rinse with clean water.
• Clean drain pan: Access the drain pan from the rear or front and wash it with warm soapy water. Dry thoroughly.
• Deodorize: Place open boxes of baking soda or activated charcoal in both compartments for several days.
• Check door gaskets: Clean gaskets and folds where spills can hide.