Samsung Air Conditioner Error Code E368

E368 indicates an output current sensor error on inverter PBA2, the power board assembly that drives the compressor. The system detected that the current sensor signal from the board was missing, erratic, or outside the expected range. The unit shuts down to prevent damage from an unmonitored electrical fault. A technician needs to inspect the board, connectors, wiring, and compressor to determine the root cause.

No, you should not continue operating the unit while E368 is active. The error indicates the system cannot reliably monitor compressor current, which means a developing electrical fault could go undetected and lead to compressor failure or more serious damage to the inverter board. Keep the unit off until the fault is diagnosed and repaired.

Repair costs vary depending on the root cause. If only a connector or wire harness repair is needed, costs are generally lower, typically in the range of $100 to $250 including labor. Replacing the inverter PBA2 board is more expensive, often ranging from $300 to $600 or more depending on the unit model and labor rates. If the compressor itself has failed, replacement costs can exceed $800 to $1,500. A diagnostic visit is the best way to get an accurate estimate.

This error involves high-voltage inverter circuitry, so most of the diagnostic and repair work should be performed by a qualified technician. A homeowner can check for obvious issues like tripped breakers or loose external connections, but safely testing the PBA2 board and compressor wiring requires training and appropriate test equipment. Attempting to work inside the unit without proper knowledge poses a serious electrical hazard.

A power reset may temporarily clear the error display, but if the underlying cause is a hardware fault in the PBA2 board, wiring, or compressor, the code will return once the unit restarts and attempts to operate. Resetting is not a repair and should only be used as a diagnostic step to determine whether the fault is intermittent. Persistent reappearance of E368 confirms that a component failure requires attention.