Error codes

Refrigerator displays error message for refrigerator no codes. Unplugging removes error for a day or so. Thanks.

What is the display reading now?

Error with no codes. Thanks.

So what is the refrigerator doing? Is there anything in the displays?

Nothing in the displays. Refrigerator does not seem cold.

Are the fans running, anything working at all?

Fans running. The error message does not have any letters.

If the unit is not cooling and the display is dark, the main control PCB is likely faulty. That board is mounted on the back of the machine and available at the link below.

http://www.appliancepartspros.com/lg-pcb-assembly-main-ebr64110557-ap5628762.html