Most chain drive openers suggest you tighten the chain so there's about 1/4 in. of slack from the rail to the chain (check your manual). Multi-Function Tool Set-Stainless Steel, Specially Designed Training kit, Professional 17 PCS, with 1 Lock (Blue #1), Liftmaster 41A5021-I Logic Board Garage Door Opener Circuit Board, QIACHIP Wireless 433Mhz RF Module Receiver and Transmitter Remote Control Built-in Learning Code 1527 Decoding 4 Channel Output (Transmitter and Receiver kit), Genie Garage Door Openers 31184R Sequensor Board, MG Chemicals - 540 Copper Clad Board, Double Sided, 5" x 3", 1 oz Copper, 1/16" Thick, FR4, Gypsum Board Cutting Tool,Multifunctional Woodworking Gypsum Board Cutting Tool Kit,Scriber Dry Wall Artifacts with Scale Board Cutting Board Tools 2020 New for Foam Board,KT Board,Cardboard, MG Chemicals - 503 Copper Clad Board, Single Sided, 5" x 3", 1 oz Copper, 1/16" Thick, FR4, Sears Craftsman 41AB150-2 Receiver Logic Board, Genie Replacement Control Board 36190T.S for Chain Drive Models, Sears Craftsman 41A5021-3M-315 Receiver Logic Board, LiftMaster - #17 Receiver Logic Board Assembly for 2265 41A5483B, Dyson 914641-01 Circuit Board, PCB Power Control DC24, Liftmaster 41Ac075-2 Logic Board for Chain Drive Operator, Genie 20380S Sequencer Control Board 6 Terminal, Sears Craftsman 41A5021-3D Garage Door Opener Circuit Board, Liftmaster Chamberlain 41DB001-1C DC Belt Drive Logic Board, Genie 37470R Circuit Board Assembly (1000) for Genie Models 3022, 3024, 3042, MG Chemicals - 586 Copper Clad Board, Single Sided, 6" x 4", 1 oz Copper, 1/32" Thick, FR4, Chamberlain 41A5483C Garage Door Opener Logic Board Genuine Original Equipment Manufacturer (OEM) Part, Sears 41ac150-1m Craftsman Receiver Logic Board, Balboa 10-175-4638 Circuit Board, VS504SZ, MX504SZ, 54638-01, Liftmaster K001A6837 Logic 4 Board Commercial OEM Genuine, DC 12V 8 Channel Ralay Wireless RF Remote Control Switch 2 Transmitter+Receiver Adapter (315MHz), Liftmaster/Chamberlain/Sentex 41as050-1 Receiver Logic Board Assembly, NA. Updated hourly. Our most popular products based on sales. That way, you won't lose a finger if your unsuspecting housemate hits the remote button while you're working. Don’t know the part number? There are two knobs on the opener that control how far the door travels up and down. We recommend our users to update the browser. You can save yourself some time by using the existing wires. Be sure to use a bulb of the correct wattage. Lightning strikes are the most frequent reason for the demise of a circuit board. The Chamberlain Group, Inc. manufactures and markets some of the world's most reliable, efficient and cost-effective Garage Door Opener products for do-it-yourself installation. Our latest shed is also a pavilion—and you can build it, too! And don't use too much or it could drip on your car. To replace the socket, you'll need to remove the circuit board to get at it. If it doesn't, the problem is with your tracks, rollers or springs rather than your opener. The logic board also control the garage door opener lights. If your Chamberlain garage door opener trouble is a broken door spring and you pull the emergency release cord while the door is in the raised position, the door could come crashing down. Garage Door Won't Open with Remote Fix: Replace the circuit board If the outlet has power, but there's no sound or no lights when you push the wall switch and remotes, you probably have a bad circuit board. If your garage door opener remote controls and wall control don't work, the logic board might be the problem. QIACHIP Wireless 433Mhz RF Module Receiver and Transmitter Remote Control Built-in Learning Cod… There's a problem loading this menu right now. Remove the two wire connections and install the new socket. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books.