If your garage door opener isn't working right, this LiftMaster K001D8396-1 power logic board might be the fix you need! This is a brand new logic board that comes unused in its original packaging. The MPN is K001D8396-1,K001D8072-1 and it's also known as K001D8072-1, K001D8396, K1D8396-1, K1D8396, K1D8072-1, and K1D8072 (check which one matches your old board). UPC is 012381180899. This board controls the power and logic functions of your LiftMaster garage door opener - if your opener is acting weird, not responding to remotes, or showing error lights, replacing this board often solves the problem. It's a 1PH logic board (single phase). Installation requires some electrical knowledge, but if you're handy, you can probably do it yourself. Much cheaper than replacing the whole opener! Make sure to disconnect power before installing. Perfect for DIY repair or for professional garage door technicians to keep in stock. Get your garage door working smoothly again with this genuine replacement part!