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

Safety first: Unplug the refrigerator before removing panels or cleaning internal components. Use non-abrasive cleaners and adequate ventilation.

Step 1 – Deep clean interior:

• Remove all food and shelves.
• Clean all surfaces with a mixture of baking soda and warm water.

Step 2 – Clean drain pan and rear area:

• Remove the rear lower panel.
• Take out the drain pan if possible and clean with hot soapy water.

Step 3 – Clean air ducts and towers:

• Remove interior air tower covers and wipe inside surfaces.

Step 4 – Deodorize:

• Place open boxes of baking soda or activated charcoal in both compartments for several days.

When to call a technician: If odor persists and appears to come from insulation or sealed areas, professional assessment is needed; in severe cases, replacement may be more economical.