I took it apart to fix it and can't remember what color wires go where. model 139.53990D
Try these resources:
Wiring garage door opener model 139 53990D ShopYourWay
fix garage door opener wiring Sears PartsDirect
I’m happy to help further over the phone at https://www.6ya.com/expert/donald_f2ed37026a3ac881
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