The PCB Assembly, Main is an OEM part for LG refrigerators. As the main circuit board, it controls all functions including temperature regulation, cycle times, lighting, defrost functions and more. The printed circuit board houses the delicate integrated circuits, microprocessors and electronic components that allow the refrigerator to operate efficiently.
Causes of a bad main circuit board can include power surges or fluctuations over time that can degrade sensitive electronic components. Other potential issues may arise from moisture penetration or damage due to impact.
Symptoms of a bad main PCB assembly include:
- Inconsistent or incorrect refrigerator temperatures
- Frost or ice buildup inside cabinets
- Failure to function in cooling, freezer or other cycles
- Lights not working properly
- Error codes or beeps indicating system faults
This LG part is also compatible with some Kenmore models.