Cuisinart 16 Bottle Private Reserve Wine Cellar Replacement Parts For Model CWC-1600

Hi Mostafa, Thank you for your question. If moist air enters the wine fridge cooler, during the cooling period, condensation will form and freeze on the back wall of the wine cabinet. Moist air can get inside the cooler if the door is open for long periods of time or the gasket on the door is not sealing correctly. You will need to inspect the door gasket and replace it if it is not sealing properly. If you have any questions, please let us know. We are open 7 days a week. We look forward to hearing from you!