Main PCB Assembly
See part 500A in the diagram
Part # EBR78940503·LG

Main PCB Assembly

The EBR78940503 is a main pcb assembly for LG appliances. Basic tools needed. Compare prices from top sellers.

Moderate Repair

Fits LG appliances

LG

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4 stores · Updated May 15, 2026
RepairClinicLowest
$214.44
4.4(3.1k)Preorder
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Part Advantage
$298.99
4.8(728)Preorder
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ApplianceParts Pro
$351.94
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PartSelect
$381.16
4.5(13.6k)Preorder
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Maintain the performance of your refrigerator with the high-quality main PCB assembly designed for LG appliances. This essential circuit board, identified by SKU EBR78940503, ensures reliable functionality of your refrigeration unit, providing control over essential features such as temperature regulation and energy efficiency. Crafted by LG Electronics, this part is specifically tailored for compatibility with LG refrigerators, making it a perfect replacement for your existing timer and overlay components. Investing in genuine parts like this PCB assembly guarantees longevity and optimal performance of your appliance. Whether you're a DIY enthusiast or a professional technician, the installation process is straightforward, allowing you to restore your refrigerator's capabilities swiftly. Choose this reliable circuit board to enjoy peace of mind and maintain the reliability of your LG refrigerator.

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