Freezer display shows 1E or IE and beeps; cooling may stop or be erratic.

Safety first: Unplug the freezer or switch off the circuit breaker before removing panels or handling wiring.

• Power reset: Disconnect power for 5 minutes, then restore power. On some Samsung models, press and hold the Power Freeze and Power Cool buttons for 10 seconds to clear a false 1E error. If the code returns, continue.
• Access the freezer sensor: Remove freezer drawers and the rear interior panel (evaporator cover). Look for a small sensor clipped to the evaporator tubing or mounted on the liner with two wires leading to it.
• Inspect wiring: Check the sensor wires for cuts, pinches, or ice damage. Ensure the connector is fully seated in the harness and not corroded.
• Test the sensor: Using a multimeter set to resistance (ohms), measure the sensor at room temperature. Samsung NTC sensors are typically around 5 kΩ at 77°F (25°C). If the reading is open, shorted, or far out of range, replace the sensor.
• Replace the sensor: Disconnect the old sensor, clip or unclip it from the evaporator, and install the new Samsung-compatible evaporator sensor in the same position. Route wires away from sharp edges and moving parts.
• Reassemble and test: Reinstall the evaporator cover and drawers, restore power, and monitor for 1E returning. If the error persists with a known-good sensor, the main PCB may be faulty and should be diagnosed or replaced by a professional.