Samsung Refrigerator Error Code Comp Low Voltage Error

The Comp Low Voltage Error means the voltage being supplied to the compressor inverter board has dropped below 60V AC, which is the minimum threshold for 110 to 127V models. The inverter board controls the compressor, and it shuts down when input voltage is too low to protect the compressor from damage. The fault can originate from the home's electrical supply or from a problem on the refrigerator's main PCB.

Unplugging the refrigerator and plugging it back in may temporarily clear the error code, but the fault will return if the underlying voltage problem is not resolved. A reset is only useful as a diagnostic step to confirm whether the condition is persistent. Addressing the root cause, whether low supply voltage or a PCB issue, is necessary for the error to stay cleared.

Repair costs depend heavily on the root cause. If the issue is a bad wall outlet or wiring, an electrician may charge somewhere in the range of $75 to $250 for the repair. PCB solder joint reflowing by a technician typically falls in the $100 to $200 range for labor. A full PCB replacement can cost between $150 and $400 or more depending on the model and whether professional installation is included. Getting a diagnosis before committing to parts is strongly recommended.

Some causes are DIY-friendly. Start by measuring the voltage at the wall outlet with a multimeter and making sure the refrigerator is plugged directly into the outlet rather than an extension cord. If wall voltage is adequate, a technician can inspect the PCB solder joints, which can sometimes be repaired by reflowing cold joints. Internal PCB repair and electrical panel issues should be handled by qualified professionals.

The error itself is a protective response, not a hazard. The refrigerator triggers this code specifically to prevent the compressor from operating under unsafe voltage conditions, which protects the compressor from overheating or damage. However, if the low voltage is caused by wiring problems in your home, such as loose connections at the breaker panel or outlet, those conditions should be evaluated by a licensed electrician.