Sears Craftsman 41AB150-2M Receiver Logic Control Board
The Sears Craftsman 41AB150-2M / LiftMaster 41AB050-2M receiver logic board is a service replacement for select AC belt drive residential garage door openers that use the 315 MHz Security+ purple learn button platform. On these openers, the board is more than a radio receiver; it is the main control point for remote programming, wall-control communication, photo-eye input processing, motor-control commands, and light/relay functions built into the opener head.
This item is especially important on Sears Craftsman openers because the opener cover may show a Craftsman model number while the internal service board follows LiftMaster or Chamberlain numbering. The 41AB150-2M and 41AB050-2M references should be treated as a cross-reference-sensitive match. If the board number, drive type, learn button color, antenna color, or end-panel layout does not match, the opener may not program remotes or may not operate correctly after installation.
Compatible With
Commonly associated with select 315 MHz Security+ AC belt drive LiftMaster, Chamberlain, and Sears Craftsman openers when the parts diagram calls for the 041AB050-2M / 41AB050-2M board family.
- Sears Craftsman 41AB150-2M applications when confirmed by original board label
- Sears Craftsman 41AB150-2 and 41AB150 related search references where the service board matches
- Select Craftsman models commonly searched with this family, including 139.53904D, 139.53914D, 139.53985D, and similar 315 MHz purple learn button belt drive units when verified
- LiftMaster and Chamberlain AC belt drive openers manufactured in the 2005 to 2015 range that call for 041AB050-2M
- 315 MHz Security+ systems using compatible 371LM remote controls and 377LM wireless keypads
- Not compatible with yellow learn button Security+ 2.0, red/orange 390 MHz, green learn button billion-code, screw drive, chain drive, or DC motor boards
Also Known As / Related Part Numbers
Features & Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | Receiver logic board with end panel |
| Sears / Craftsman Reference | 41AB150-2M / 41AB150-2 reference family |
| LiftMaster Service Part | 041AB050-2M / 41AB050-2M |
| Application | Receiver logic board replacement for select AC belt drive garage door openers |
| Drive Type | AC belt drive |
| Motor / Power Family | AC residential garage door opener |
| Security Technology | Security+ 315 MHz |
| Radio Frequency | 315 MHz |
| Learn Button Color | Purple |
| Production Range | Select 2005 to 2015 openers |
| Compatible Accessories | 371LM remote, 377LM wireless keypad, and other compatible 315 MHz Security+ accessories where supported |
| Notes | Use only where the original parts diagram calls for this AC belt board family. |
Common Replacement Reasons
- Garage door opener has power but will not respond correctly to remotes, keypad, or wall control after other basic issues have been ruled out.
- The radio receiver section will not learn compatible remotes or drops programmed accessories after reset.
- Visible board damage, burnt components, lightning surge damage, or corrosion is found on the original board.
- The motor, safety sensor, and wall-control circuits have been checked and the parts diagram calls for this receiver logic board family.
- A previous board was replaced with the wrong frequency or wrong learn-button generation and the accessories no longer match.
Technician Note
If the opener still runs from the wall button but will not learn 315 MHz remotes, the receiver section of the board may be suspect, but sensor wiring, lock mode, wall-control issues, and accessory programming should be checked first. Match the board number and belt-drive end panel before ordering.
Before Ordering Checklist
- Match the part number printed on the original board or parts diagram, not only the opener cover model name.
- Confirm the learn button color and radio technology before ordering; purple 315 MHz Security+ boards do not replace yellow Security+ 2.0 or older red/orange 390 MHz boards.
- Check the drive type, motor type, and end-panel layout because belt, chain, screw drive, AC, and DC boards are not automatically interchangeable.
- Plan to reprogram remotes, wireless keypads, HomeLink, and MyQ/AssureLink accessories after the board is installed when applicable.
- Disconnect power before service and use a qualified garage door technician if wiring, travel setup, or force/safety testing is not familiar.
Professional Advisory
Receiver logic board replacement affects the opener controls, radio memory, travel/force setup, and safety input behavior. Do not bypass photo eyes or safety circuits to make a board work. If the opener has erratic movement, damaged wiring, or repeated board failures, have the door balance, power supply, sensor wiring, and surge exposure checked by a qualified garage door technician.
Product Questions & Answers
Is 41AB150-2M the same as 41AB050-2M?
41AB150-2M is a Sears Craftsman application reference commonly tied to the LiftMaster 41AB050-2M service board family. Match the number on the original board or parts diagram before ordering.
What remotes work with this board?
This board family is for 315 MHz Security+ purple learn button systems, commonly used with 371LM style remotes and 377LM style wireless keypads where the opener supports them.
Will this replace a yellow learn button board?
No. Yellow learn button Security+ 2.0 openers use a different board and radio platform.
Does the board come programmed?
No. Remote controls, keypads, and vehicle transmitters normally need to be reprogrammed after the board is installed.
Can this board be used on a chain drive opener?
Do not assume that. This listing is written for the AC belt drive 41AB050-2M family, so chain drive boards should be matched separately.
