41A5021-1G LiftMaster Receiver Logic Board (41A5021-1I)This circuit board works with Security openers with no light socket.Same as 41A5021-1I LiftMaster Garage Door Opener 41A5021-1I Receiver Logic Board by LiftMaster 41A5021-1C, 41A5021-1D, 41A5021-1E, 41A5021-1F, 41A5021-1G, 41A5021-1H, 41A5021-1I Product information Technical Details. Part Number 41A5021-1I Item model number model 3110 - 1/3 HP manual. The LiftMaster 41A5021 is an electronic garage door opener made by the parts diagrams. liftmaster 41a5021-1g recever logic Liftmaster security+ pro 1/3HP garage Chamberlain, Craftman and Sears Programming · Manuals-Diagrams. Chamberlain Liftmaster Professional Manual 1 3 Hp Read/Download Replacing receiver logic boards is an easy repair. Matching up the correct board is easy as well. Simply match the 41Axxxx-xx part number found on the control panel of your garage door opener (as pictured below) to one on our list below. Our LiftMaster boards are fully compatible with all Chamberlain made openers.* Gear Kits Please check the brand name for your gearset or specific year your garage door was manufactured. Liftmaster is the same model line as sears craftsman and access master. This item LiftMaster Garage Door Opener LiftMaster 8365-267 Premium Series 1/2 HP AC Chain Drive Garage Door Opener, Chain/Rails Sold Separately LiftMaster 8355 Premium Series 1/2 HP AC Belt Drive MyQ Security+ 2.0 Replaces 3280 RAIL ASSEMBLY NOT INCLUDED Liftmaster Sears Chamberlain Remote Control Transmitter 61LM This original equipment replacement part is for chamberlain, craftsman, lift-master, sears, master mechanic, and Wayne Dalton garage door openers built between 1984 and 1992. Liftmaster 41a5021-1f Manual Chamberlain Garage Door Opener Owner's Manual. click on Customer Support. instruction liftmaster 41a5021-1g manual recever logic Liftmaster security+ pro 1/3HP garage door opener 41A5021-1D front instruction manual. $4.00, or Best Offer 11 bids, +$30.59 www.liftmast