Samsung Air Conditioner Error Code E369

E369 indicates a DC voltage sensor error on the inverter PBA2, the secondary inverter control board in the unit. The sensor that monitors DC bus voltage has reported a value outside acceptable limits or has failed. The system shuts down to protect the compressor and drive components from potential damage.

No. The E369 error causes the unit to shut down as a protective measure, so continued operation is not possible until the fault is cleared. Attempting to bypass the error and force operation could result in damage to the compressor or inverter components. The unit should remain off until the underlying cause is diagnosed and repaired.

Repair costs vary depending on the root cause. If the fix is limited to reseating connectors or correcting the power supply, labor costs alone could range from around 80 to 150 dollars. If the inverter PBA2 board requires replacement, parts and labor combined can range from approximately 200 to 500 dollars or more, depending on the model and local labor rates.

Basic checks such as inspecting wiring connectors and verifying that the AC supply voltage is within spec can be performed by a knowledgeable DIYer. However, diagnosing and replacing the inverter PBA2 board involves working with high-voltage DC circuits and requires proper safety precautions and equipment. A certified HVAC or appliance technician is strongly recommended for this repair.

A power reset may temporarily clear the error code, but if the underlying fault in the PBA2 sensor circuit or wiring persists, the code will return quickly. A reset alone is not a fix for E369. Persistent reappearance of the code after a reset confirms that a hardware fault needs to be addressed.