Flush with a solution of 1 tsp baking soda + 1 cup hot water to remove mold/biofilm.
Access the drain tube’s other end: pull the fridge away from the wall, find the rubber tube at the back leading down to the drain pan. Disconnect it at the top (near the fridge body) and blow through it or flush with hot water from the bottom up. defrost drain refrigerator
Use a turkey baster or funnel to pour hot (not boiling) water directly into the drain hole. Wait 10–20 seconds. If water drains freely – success. If it pools – continue. Flush with a solution of 1 tsp baking
and remove drawers/shelves for access.
(see above). Clear any visible debris with your fingers or a cloth. defrost drain refrigerator