Samsung Refrigerator Error Code 24E

The 24E code indicates a freezer defrost heater fault, triggered when the defrost heater runs for more than 70 minutes without completing a cycle. The fault can be caused by a short circuit, an open or disconnected heater element, a blown bimetal thermal fuse, or a wiring contact error in the freezer compartment defrost circuit. Over time, this fault causes ice to build up on the evaporator coil and reduces the refrigerator's cooling performance.

A reset may temporarily clear the 24E code from the display, but it will not resolve the underlying hardware fault. If the defrost heater, thermal fuse, or wiring has failed, the error will return once the refrigerator attempts its next defrost cycle and again runs for more than 70 minutes without completing. The faulty component must be diagnosed and repaired to permanently clear the code.

Repair costs vary depending on the faulty component. A replacement defrost heater or bimetal thermal fuse typically costs between $15 and $60 for the part alone. If professional labor is involved, total repair costs including diagnosis and installation can range from $100 to $300 or more depending on your location and service provider. A main control board replacement, if required, will generally be the most expensive outcome.

Some causes of the 24E error are DIY-accessible. Checking the CN70 connector for a loose or separated connection requires only basic tools and no parts. Measuring resistance across the CN70 Brown and Gray wires with a multimeter will confirm whether the heater or thermal fuse has failed. Replacing the defrost heater or bimetal fuse involves accessing the freezer evaporator panel, which is a moderately involved repair that many experienced DIYers can complete.

Continued use with an active 24E error is not recommended. Without a functioning defrost cycle, ice accumulates on the evaporator coil and progressively blocks airflow. This leads to rising temperatures in both the freezer and fresh food sections, creating a food safety risk. In the case of a shorted heater, there is also a potential concern with an uncontrolled heating element in the freezer cavity.