EBR57726724 Genuine Sub PCB Assembly for LG Appliances, LG Secondary Circuit Board, Sub Control Board Replacement

EBR57726724 is a genuine LG sub PCB assembly, a secondary circuit board that works alongside the main control board in an LG appliance. It's described simply as a sub PCB, and our records don't name the LG product or models it comes from. The surest way to confirm a match is the EBR57726724 number printed on the sticker of the board you are replacing.

What an LG sub PCB does and how it fails

LG splits the electronics in many of its products across more than one board. The main board makes the decisions, while a sub board takes on a smaller job such as driving a display, reading a keypad or switching a group of loads. When a sub board fails, part of the appliance stops responding while the rest seems normal, for example a blank section of display, buttons that do nothing, or one function that won't start. Before replacing it, check the ribbon or harness between the boards, since a loose or corroded plug gives the same symptoms.

Part details

• Genuine LG part EBR57726724
• Sub PCB assembly, a secondary circuit board
• LG product and model list not on file
• Match the EBR number on the label of your old board

Swapping the sub board

Switch the appliance off at the wall and unplug it, or isolate the circuit if it's hard wired, then wait a few minutes before opening any covers. Photograph the board in place so every plug goes back where it came from. Handle the new board by its edges after touching bare earthed metal to discharge static. Refit any clips, screws and insulation sheets, then test every function.

Questions about this part

Where do I find the part number on my old board?

LG boards normally carry a white sticker with the EBR number printed on it, often beside a barcode. Compare all 11 characters with EBR57726724. If the sticker is missing or unreadable, send us your appliance model number through the parts enquiry form.