The LG EBR81816915 Microwave Main PCB is a replacement control board designed to regulate essential microwave functions and support reliable operation. This main printed circuit board processes signals from the control panel and coordinates key components such as the magnetron, turntable motor, cooling fan, and interior light to ensure each cooking cycle operates correctly. Installed ... https://www.hnkparts.com/lg-ebr81816915-microwave-main-pcb