LG Refrigerator Error Code Lo

Lo appears in the outside temperature display area of the LCD when the ambient temperature surrounding the refrigerator drops below -10°C (14°F). It is an informational indicator, not a system error or component failure code. The refrigerator is simply reporting that the room temperature has fallen below the lower limit of its displayable range. No internal fault has been detected.

If the Lo code is appearing because the room is genuinely below -10°C, continued operation is not recommended. LG refrigerators are designed to operate within a specific ambient temperature range, and extremely cold environments can negatively affect compressor function, ice maker performance, and food preservation. Moving the unit to a warmer location is the safest course of action.

A reset will not permanently clear the Lo code if the underlying condition still exists. If the ambient temperature remains below -10°C, or if a faulty sensor continues to send an out-of-range signal, the code will return after the reset. The display will only stop showing Lo once the actual ambient temperature rises above the threshold or the defective component is repaired or replaced.

If the unit is located in a cold garage, basement, or outdoor space during winter, the Lo code will clear on its own once the ambient temperature rises above -10°C. If the surrounding space is not actually that cold, check the ambient temperature sensor and its wiring harness for damage, shorts, or loose connections. Replacing a faulty ambient sensor will resolve the issue if the sensor is the root cause.

If the code is caused by a genuinely cold environment, there is no repair cost. If an ambient temperature sensor replacement is needed, parts typically range from $15 to $60 depending on the model, with professional labor adding $80 to $200 depending on your location and service provider. A main control board replacement, if required, can cost significantly more, generally in the $150 to $400 range for parts alone.