LiftMaster logic boards contain all the computer logic functions you need to have a smoothly operating garage door opener. If your garage door opener isn't responding to your remotes or keypads, it could be a problem with the circuit board. Thankfully, Preferred Doors, LLC carries circuit boards for every LiftMaster model. Logic boards make your door function normally and make the process of opening your garage door automatic and smooth. A properly functioning garage door is the key to having safe home or commercial space and all of those functions are dependent on the circuit board. LiftMaster Chamberlain circuit boards are easy to replace and can save you the hassle of replacing a whole opener unit. Replacing your circuit board can add years of life to your garage door opener and the process has never been easier or more affordable than with the help of Preferred Doors, LLC.