Error Code 1E
Freezer temperature sensor has failed or lost connection
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 1E
What This Means
Sensor housing connector separated or not fully seated; Open-circuited or broken thermistor wire; Short circuit in the thermistor or wiring; Thermistor reading abnormal temperature (above +50°C or below -50°C)
What actually causes this:
The thermistor that monitors freezer temperature has a broken wire, a loose connector, or the sensor itself has failed — the fridge can't read how cold the freezer is.
First Thing to Check
Open the freezer, locate the thermistor connector at the back wall, and press it firmly until it clicks.
Parts Involved
How to Fix
- 1
Enter self-diagnostic mode by pressing Freezer Key + Fridge Key simultaneously for 8 seconds
- 2
Measure voltage between Main PCB CN30 pin 1 and pin 3; should be within 4.5V–1.0V range
- 3
Inspect sensor connector at CN30 for secure seating and proper pin order per wiring diagram
- 4
Measure thermistor resistance at CN30 pins 2 and 7 and compare to temperature-resistance table (e.g., ~13.3 kΩ at 0°C)
This Error Applies To
Samsung RF23 Series Refrigerators (2023) (2023–present)
Related Error Codes
Freezer defrost sensor has an open or short circuit
Fridge compartment temperature sensor is faulty or disconnected
Fridge defrost sensor is open or shorted
Ambient temperature sensor has failed or is disconnected
Freezer fan motor stopped or lost feedback signal
Cool Select Room fan has stopped or lost feedback
Internal board communication chip has failed
Cool Select Room temperature sensor is disconnected or failed