Samsung Refrigerator Error Code HV

HV stands for a compressor over-voltage error. It means the refrigerator's control board detected that the incoming AC power voltage exceeded the safe limit, which is above 155V on a 110-127V system or above 310V on a 220-240V system. The refrigerator shuts down the compressor automatically to prevent damage. The root cause is usually related to the electrical supply rather than an internal component.

Yes, high voltage entering an appliance is a genuine safety concern. Excess voltage can damage internal electronics and, in severe cases, create a risk of overheating. The refrigerator's protection circuit shuts the compressor down to limit this risk, but the underlying voltage issue in your home's supply should be addressed promptly to protect other appliances as well.

Unplugging the refrigerator and plugging it back in may temporarily clear the HV code, but the error will return if the underlying over-voltage condition has not been corrected. A reset does not fix the cause. You should verify that input voltage is within spec and inspect the control board before relying on a reset as a solution.

Some steps are DIY-friendly, such as measuring the outlet voltage with a multimeter and visually inspecting the power cord and outlet. If the input voltage is within the normal range, the issue may involve inspecting the PCB solder joints, which requires disassembly and some electronics experience. Control board repair or replacement is best left to a qualified technician.

Repair costs depend on the root cause. If the issue is simply high utility voltage, costs may be minimal, involving only a service call fee in the range of $75 to $150. If the inverter control board needs repair or replacement, parts and labor can range from $150 to $400 or more. Getting a diagnostic assessment first helps determine which parts, if any, are needed.