The part number 6871W1N012B is a **relay control board** for LG range ovens. It is an original equipment manufacturer (OEM) part that is compatible with the following LG range models:

* LG LRE30451-series electric ranges

* LG LRE30453-series electric ranges

* LG LSB5682-series electric ranges

The relay control board receives signals from the main oven control board and operates relays to regulate the oven elements. This helps to ensure that the oven elements are powered on and off correctly, and that the oven operates safely.

If your LG range oven is not heating properly, or if you are having other oven problems, it is possible that the relay control board is faulty. You can replace the relay control board yourself, or you can have a qualified appliance repair technician do it for you.

Here are some of the signs that your LG range oven relay control board may be faulty:

* The oven elements do not heat up to the correct temperature.

* The oven element cycles on and off very quickly.

* The oven display shows error codes.

* The oven produces smoke or smells.

* The oven door will not open or close properly.

If you are experiencing any of these problems, it is a good idea to have your LG range oven repaired as soon as possible. A faulty relay control board can cause damage to your oven, or even create a safety hazard.