LG Refrigerator Error Code r2 E

The r2 E code means the second refrigerator compartment temperature sensor has a fault. The control board has detected that the sensor's resistance is shorted, open, or outside the acceptable range. This sensor is critical for maintaining proper cooling in the refrigerator section. The issue may lie in the sensor itself, the wiring harness, or the connector at CON6.

It is not advisable to rely on the refrigerator for extended food storage while this error is active. Because the sensor monitors compartment temperature, a failed sensor means the control board may not regulate cooling accurately. Food safety can be compromised if the fridge runs too warm without triggering an alert. Address the fault as soon as possible to avoid spoilage.

If only the thermistor needs replacement, parts typically range from $15 to $50, and a professional repair call adds labor costs on top of that, generally bringing the total to somewhere between $100 and $250 depending on your area. If the main control board is at fault, parts alone can range from $150 to $350 or more, making the total repair cost considerably higher. Getting a diagnostic visit from a qualified technician before ordering parts is the best way to avoid unnecessary expense.

A knowledgeable DIYer can start by checking the connector at CON6 for loose or corroded terminals, since a poor connection is the most common cause. If the connector looks good, measuring resistance at Pin 7 to Pin 8 of CON6 with a multimeter will confirm whether the sensor has failed. Replacing a thermistor is a straightforward repair for someone comfortable with basic appliance work, but diagnosing a wiring or control board issue may require more technical skill.

A reset may temporarily clear the code from the display, but the error will return if the underlying fault has not been fixed. Resetting the refrigerator does not repair a failed sensor, damaged wiring, or a loose connector. Use a reset only to confirm whether a transient issue (such as a momentarily unseated connector) was the cause, and monitor closely afterward to see if the code returns.