Samsung Refrigerator Error Code Damper Heater Error

This error means the main control board has detected a fault in the damper heater circuit, specifically an open circuit condition. The damper heater is a small resistive element that prevents ice from forming around the damper door that controls airflow between compartments. The fault can be caused by a failed heater element, a broken wire, a connector contact problem, or a short circuit. The board identifies the fault by monitoring the circuit resistance through connector CN40.

This fault is generally not an immediate safety hazard, but it can affect refrigerator performance. Without a functioning damper heater, ice can build up around the damper, potentially causing it to freeze in one position and disrupting temperature control in the fresh food compartment. Food safety could become a concern if temperatures rise due to airflow being blocked over an extended period.

A power reset may temporarily clear the error code from the display, but the fault will return if the underlying problem in the damper heater circuit has not been corrected. The main PCB continuously monitors the circuit resistance and will log the error again once it detects the out-of-range condition. A reset should only be performed after the actual cause has been diagnosed and repaired.

A knowledgeable DIYer can perform the first diagnostic step by disconnecting the CN40 connector from the main PCB and measuring resistance between pins 25 and 27 with a multimeter. The expected reading is 24 ohms, plus or minus 7 percent. If the reading is out of range, the repair may involve replacing the damper heater element or repairing the wiring harness, which requires disassembling interior panels. If you are not comfortable working with appliance wiring and connectors, a technician is recommended.

Repair costs vary depending on the root cause. If the issue is simply a loose or corroded connector, there may be no parts cost, with only a service call fee involved. Replacing a damper heater element typically costs between 20 and 80 dollars for the part, plus labor if a technician performs the work. A full service call for diagnosis and repair can range from 100 to 300 dollars or more depending on your location and the extent of the repair needed.