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Error code reference

Samsung Refrigerator Error Code F-SE

F-Evaporator Sensor (Freezer evaporator sensor) open or short circuit disorder

Samsung codesSamsung refrigerator codes
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What the F-SE error code actually means

Your Samsung refrigerator is showing an error because the temperature sensor inside the freezer's cooling coil area is sending a reading that is either impossibly cold or impossibly warm, which tells the refrigerator something is wrong with that sensor or its wiring. Without this sensor working correctly, your refrigerator cannot properly manage its defrost cycle, which may eventually lead to frost buildup and poor cooling. Turning the fridge off and back on is the first step, but if the error returns, a technician will need to inspect or replace the sensor.

Diagnostic procedure

The full F-SE procedure

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First diagnostic step
Turn main power OFF then ON and check self diagnosis display.
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Most common causes of F-SE

Ranked by how often they cause this code
  1. 1Failed evaporator sensor (thermistor)
  2. 2Damaged or broken sensor wiring
  3. 3Corroded or loose connector terminals
  4. 4Ice or frost bridging around the sensor
  5. 5Faulty main control board

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Questions people ask about F-SE

What does F-SE mean on a Samsung refrigerator?
F-SE indicates a fault with the freezer evaporator temperature sensor. The control board has detected that the sensor is either reading below -50°C, which signals an OPEN circuit, or above +50°C, which signals a SHORT circuit. Both conditions are outside the sensor's valid range and prevent the refrigerator from properly managing its defrost and cooling cycles.
Is it safe to keep using my refrigerator while the F-SE code is displayed?
The refrigerator may continue running in the short term, but without a functioning evaporator sensor, the control board cannot accurately manage defrost cycles. This can lead to frost buildup on the evaporator coils, reduced airflow, and eventual loss of cooling in both the freezer and fresh food compartments. It is best to address the fault promptly to prevent food spoilage or further component damage.
How much does it cost to repair the F-SE error code on a Samsung refrigerator?
Repair costs vary depending on the root cause. A replacement evaporator sensor typically costs between $15 and $50 for the part, and a DIY repair is feasible for those comfortable working with appliance wiring. If a technician is needed, expect labor charges ranging from $100 to $200 or more depending on your location and service provider. A control board replacement, if required, will cost significantly more for both the part and labor.
Will resetting my Samsung refrigerator clear the F-SE error code?
Turning the main power off and back on is the recommended first step and may clear the code if the fault was caused by a temporary signal interruption. However, if there is a genuine hardware problem such as a failed sensor, broken wire, or corroded connector, the code will return after the reset. A persistent F-SE code requires hands-on diagnosis of the sensor and wiring.
How do I fix the F-SE error code on a Samsung refrigerator?
Start by cycling the power off and on to see if the code clears. If it returns, locate the freezer evaporator sensor and its wiring harness and inspect for visible damage, corrosion, or loose connections. Use a multimeter to test sensor resistance and harness continuity. If the sensor is out of spec, replacing it is usually the fix, though a damaged harness or, in rare cases, a faulty control board may also need to be addressed.

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