Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Steamer stopped Steaming

I bought my Deni 7600 3-Tier Food Steamer on January 1, 2011 and started using it on the 3rd. It worked great for a week and then, no steam. I exchanged it for another one on January 9, 2011 and this morning, January 14, 2011, no steam. I called the manufacturer and customer service was no help. I will be returning it for a full refund this time.