Samsung Air Conditioner Error Code E261

E261 indicates a digital compressor discharge temperature sensor dislocation error. The system has detected that the sensor monitoring the compressor's discharge temperature is not properly positioned or mounted. This is a physical positioning fault, meaning the sensor has shifted or come loose from its correct location rather than necessarily failing electrically. The unit will not operate normally until the issue is resolved.

It is not recommended to continue operating the unit while E261 is active. The discharge temperature sensor is a protective component: without accurate discharge temperature readings, the system cannot detect compressor overheating, which could lead to compressor damage or a more serious failure. Most Samsung units will restrict or halt operation when this code is present to prevent equipment damage.

A simple power reset may temporarily clear the fault code, but E261 will return if the underlying sensor positioning problem has not been corrected. The control board will detect the sensor dislocation again once the system restarts and attempts to read discharge temperature data. The physical cause must be addressed before the error will stay cleared.

If you are comfortable working around HVAC equipment, you can inspect the discharge temperature sensor on the digital compressor to see if it has visibly shifted or come loose from its mounting bracket. Carefully repositioning and securing the sensor may resolve the fault. However, if the sensor wiring, refrigerant lines, or compressor housing need to be disturbed, a certified HVAC technician should perform the repair.

If the issue is simply a dislodged sensor that only requires repositioning, labor costs could range from around $75 to $150 depending on your location and technician rates. If the sensor itself needs replacement, parts and labor combined could range from $100 to $300 or more. A service call to diagnose the fault is typically the first cost to factor in.