Customer Questions and Answers for Refrigerator Temperature Thermistor by Samsung

Scott, this would indicate that the defrost drain on in the refrigerator has clogged and become iced up. To correct this, the evaporator panel would have to be removed, the ice in the drip pan cleared and hot water flushed through the drain hole until it pours down without backing up. In the back where the compressor and condenser are located, are two drain tubes that would need to be removed and cleaned as they collect dust and clog up, causing this issue.