Samsung Refrigerator Error Code 4E
The sensor the control uses to end each freezer defrost cycle is not reading correctly, so frost control in the freezer will drift. A reset may clear a glitch; a returning code means the sensor or its connection needs attention.
Common causes
- Freezer defrost temperature sensor has failed
- Wire harness connection on the sensor is loose
- Sensor or its wiring has been damaged by frost buildup on the evaporator
- Electronic control board is misreading the sensor
What to check, in order
- Power reset: unplug the refrigerator for a few minutes, then plug it back in, and watch whether the code returns.
- Look at the freezer's rear wall: heavy white frost there is a sign the defrost sensing is not working.
- Unplug the refrigerator and check the wire harness connection on the freezer evaporator defrost temperature sensor; reseat it if it is loose.
- If the code returns, the sensor needs testing with a multimeter (about 5,600 ohms at room temperature) and replacing if its reading is off; if the sensor tests good, the electronic control board is the likely fault.
Clear the code and test
- Fix what the checks above found first. Clearing the code without fixing the cause only brings it back.
- Plug the appliance back in and restore its water supply if it has one.
- Run the shortest programme and watch the point where the code appeared before.
- If the programme finishes with no code, the fault is cleared. If the code returns, write it down before calling a technician — it speeds up the diagnosis.
When to call a professional
Most cases are solved by the checks above. Book a technician if any of these apply:
- The code comes back after you have run the checks and a test cycle.
- You smell burning, see sparks or scorch marks, or the breaker trips.
- Water is leaking and you cannot stop it at the tap.
- The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.
When you call, give the brand, the code 4E, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.
Parts that may be involved
Freezer evaporator defrost temperature sensorElectronic control board
Parts are model-specific. Find your model number first — usually on a label inside the door, on the door frame or on the back — and match the part to that number before ordering.
Questions people ask about 4E
What does 4E mean on a Samsung refrigerator?
4E means: Freezer evaporator defrost temperature sensor failure. The sensor the control uses to end each freezer defrost cycle is not reading correctly, so frost control in the freezer will drift. A reset may clear a glitch; a returning code means the sensor or its connection needs attention.
Can I fix Samsung 4E myself?
Start yourself: the checks on this page cover the causes you can reach without opening the machine up. If they point to a faulty part, testing or replacing it is usually a technician job.
How do I clear Samsung 4E?
Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.
Sources checked
- Samsung support: washing machine information codes
- Samsung support: dishwasher information codes
- Samsung support (US): dishwasher troubleshooting
The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.