Samsung Air Conditioner Error Code E567

E567 indicates that the inverter DC link voltage has gone out of its safe operating range, either dropping to 150 volts or below, or rising to 410 volts or above. The inverter circuit monitors this internal DC bus voltage to protect the compressor and power electronics. When the voltage falls outside the acceptable window, the system shuts down and displays E567. Both low and high voltage conditions can trigger this code.

No. E567 means the inverter has already detected an unsafe voltage condition and shut down compressor operation as a protective measure. Attempting to force the unit to operate with this fault active could cause permanent damage to the inverter board, compressor, or both. Leave the unit off until the root cause has been diagnosed and corrected.

Repair costs vary depending on the root cause. If the fix involves replacing the inverter control board, parts and labor combined typically range from several hundred dollars to over a thousand dollars depending on the unit model and local labor rates. Capacitor-only repairs or external power corrections may fall on the lower end of that range. A diagnostic visit from a certified technician is the best way to get an accurate estimate for your specific situation.

Some causes, such as low utility supply voltage or the aftereffects of a power surge, can be identified without disassembling the unit. However, diagnosing and repairing the inverter board components, including capacitors, rectifiers, and PFC circuits, involves working with high-voltage DC levels that can be lethal even after the unit is unpowered. This repair is best handled by a qualified technician with appropriate test equipment and safety training.

A power reset may temporarily clear the error code if the underlying cause was a transient event such as a brief utility voltage sag or a single power surge. However, if the fault is caused by a failing component such as degraded capacitors or a faulty rectifier, the error will return quickly once the unit attempts to operate. A reset alone is not a fix and should not be relied upon as a solution.