Samsung Air Conditioner Error Code 38

Error code 38 on a Samsung air conditioner indicates a voltage sensor error on the outdoor control board. The board's internal circuitry that monitors voltage levels has either failed or is producing readings outside acceptable limits. The system shuts down automatically to protect the compressor and other outdoor components from potential electrical damage.

No, you should not attempt to bypass or ignore error code 38. The unit shuts down when this code appears specifically to prevent damage to the compressor and other components from unmonitored voltage conditions. Continuing to force the unit to operate without resolving the underlying fault could result in more extensive and costly damage to the outdoor unit.

The primary repair for error code 38 is replacement of the outdoor control board. Parts costs for Samsung outdoor control boards typically range from around 150 to 400 dollars depending on the specific model, with labor adding another 75 to 200 dollars depending on your region and the service provider. Total repair costs generally fall in the range of 225 to 600 dollars, though prices can vary based on unit size and board availability.

Because the voltage sensor is integrated directly into the outdoor control board and cannot be replaced as a standalone part, the fix requires replacing the entire outdoor control board. This involves working with high-voltage components inside the outdoor unit and is best performed by a qualified HVAC or appliance technician. A homeowner with electrical experience can check the incoming supply voltage and inspect wiring connections first, but board replacement should be handled by a professional.

A power reset may temporarily clear the error and allow the unit to restart, but if the outdoor control board's voltage sensing circuit has genuinely failed, the code will return quickly after the system attempts to operate again. A reset is useful for confirming whether the fault is persistent or intermittent, but it does not address the underlying hardware failure on the board.