Refrigerator display shows 5E or SE; may have cooling issues or fan noise.

Safety first: Unplug the refrigerator before removing shelves or panels.

Step 1 – Reset and observe:

• Press and hold Power Freeze and Power Cool for 8–10 seconds to clear the code.
• If the code returns within a few hours, proceed to inspection.

Step 2 – Access the refrigerator evaporator cover:

• Remove food and shelves from the fresh food compartment.
• Remove the screws holding the rear interior panel (evaporator cover).
• Gently pull the panel forward; disconnect any fan or light connectors.

Step 3 – Inspect the defrost sensor:

• Locate the refrigerator defrost sensor clipped to the evaporator tubing.
• Check for heavy ice buildup; if present, defrost the evaporator with a hair dryer on low, keeping the heat moving and away from plastic parts.
• Inspect the sensor wiring for damage or loose connections.

Step 4 – Test/replace the sensor (advanced):

• With the unit unplugged, disconnect the sensor from its harness.
• Use a multimeter to measure resistance; compare to Samsung specs (typically ~5–10 kΩ at room temperature).
• If readings are open, shorted, or far out of range, replace the Refrigerator Defrost Sensor.

Note: If a new sensor does not clear the error, the Main PCB may be faulty and should be checked by a technician.