Samsung Air Conditioner Error Code E367

Samsung error code E367 indicates a wiring fault associated with the second compressor in a multi-compressor air conditioning system. Specifically, the control board has detected that one or more of the electrical connections to compressor 2 are open, missing, or otherwise not completing the expected circuit. These systems rely on continuous, secure electrical paths between the inverter drive board and each compressor's motor windings, so any interruption in that path triggers this fault to prevent the compressor from attempting to start under abnormal conditions.

The most common sources of this fault are physical wire disconnections, loose terminal connections at the compressor junction box, or damaged wiring harness sections between the control board and the compressor motor terminals. In systems that have experienced vibration over time, connector pins can back out of their housings or corrode, producing an open-circuit condition that the board interprets as an unconnected wire. Burnt or melted wiring due to overheating from a previous compressor fault can also produce this error.

Diagnosing E367 requires a careful inspection of the full wiring path from the inverter or control board to compressor 2. Technicians should check each terminal for proper seating, inspect connectors for corrosion or heat damage, and use a multimeter to verify continuity across each conductor in the compressor wiring harness. If wiring checks out, the compressor's own terminal connections and internal motor windings should be tested to rule out an internal open-winding failure as the source of the detected disconnection.