Service Manual:
https://t2m.io/LFX28978srv

Cross Reference and Model Information
Pcb Assembly,sub

Part Number: AP5604149
Manufacturer's Part Number: EBR65640204
Manufacturer Model Number Description
LG LFC21776ST01 REFRIGERATOR
LG LFC21776ST02 REFRIGERATOR
LG LFX21976ST01 REFRIGERATOR
LG LFX25976SB01 REFRIGERATOR
LG LFX25976ST (01) REFRIGERATOR
LG LFX25976SW01 REFRIGERATOR
LG LFX25978SB01 REFRIGERATOR
LG LFX25978ST00 REFRIGERATOR
LG LFX25978ST01 REFRIGERATOR
LG LFX25978SW01 REFRIGERATOR
LG LFX28978SB (01) REFRIGERATOR
LG LFX28978ST (01) REFRIGERATOR
LG LFX28978SW (01) REFRIGERATOR