LG Washer Error Code CV

The CV code on an LG washer means the machine has detected that the voltage being supplied at the outlet does not match the voltage the washer is rated to operate on. The washer monitors incoming supply voltage and shuts down when a mismatch is detected. This is a protective function designed to prevent damage to the motor and electronics. The issue is almost always related to the power supply rather than an internal component failure.

No, you should not attempt to operate the washer while the CV code is active. A voltage mismatch can cause overheating of the motor and control electronics, potentially leading to component damage or, in severe cases, an electrical hazard. The washer's automatic shutdown is a safety response, and the underlying power supply issue should be resolved before resuming use.

Resetting the washer by unplugging it for a few minutes may temporarily clear the CV code, but the error will return as soon as the machine detects the voltage mismatch again on the next startup. The code will only clear permanently once the underlying supply voltage issue has been corrected. A reset is useful for confirming that the code reappears, which helps confirm the diagnosis, but it is not a fix on its own.

Start by locating the washer's data plate, usually found inside the door opening or on the back panel, and note the rated operating voltage. Use a multimeter to measure the actual voltage at the wall outlet the washer is connected to and compare the two values. If the outlet voltage does not match the rated voltage, contact a licensed electrician to correct the supply circuit. If the voltage matches, try plugging the washer directly into a different dedicated outlet to rule out a faulty receptacle.

The cost depends entirely on the root cause. If the issue is a faulty wall outlet, electrical repairs typically range from around $75 to $200 depending on the work required. If the home's wiring or circuit capacity is inadequate, costs can be higher. In the rare case where a main control board replacement is needed, parts and labor can range from $150 to $400 or more.