Samsung Air Conditioner Error Code E261

Error code E261 on a Samsung air conditioner indicates a digital compressor discharge temperature sensor dislocation error. This means the control board has detected that the temperature sensor responsible for monitoring the discharge line of the digital compressor is either physically out of position, improperly mounted, or has shifted away from its designated contact point. The discharge temperature sensor is a critical safety and performance component: it monitors the temperature of the refrigerant as it exits the compressor, allowing the system to detect overheating conditions and adjust operation accordingly.

The term "dislocation" in this context refers specifically to a physical positioning problem rather than an electrical failure. The sensor may have vibrated loose from its mounting bracket, been incorrectly seated during a previous service, or shifted due to thermal expansion and contraction cycles. When the sensor is not in proper contact with the discharge line or housing, it reads inaccurate temperatures, prompting the unit to trigger this fault code as a protective measure.

Diagnosis should begin by inspecting the sensor's mounting position on the digital compressor discharge line. Confirm the sensor is fully seated in its designated port or bracket and that any retaining clips or fasteners are secure. If the sensor has been dislodged but is otherwise undamaged, repositioning it correctly may resolve the fault. If physical repositioning does not clear the error, inspect the sensor wiring harness for damage and verify sensor resistance values are within the specified range for the measured ambient temperature.