Sears Craftsman 41AC150-1 Receiver Logic Circuit Board Assembly (315 MHz)
The Sears Craftsman 41AC150-1 / LiftMaster 41AC050-1M receiver logic board is a replacement 315 MHz Security+ board for select AC chain drive openers with a purple learn button. It is commonly tied to 1/2 HP chain drive opener platforms from the 2005 to 2015 era and is used where the original parts diagram identifies the 041AC050-1M family.
This board controls the opener receiver memory and logic functions, so replacing it affects remote controls, keypads, wall controls, sensor processing, and opener setup. The similar 41AC050-2M and 41AC075-2S families should not be assumed to fit. Match the exact service part, end-panel style, motor type, horsepower family, and harness layout before ordering.
Compatible With
Used with select 315 MHz Security+ AC chain drive LiftMaster, Chamberlain, and Craftsman openers where the 041AC050-1M / 41AC050-1M service board is specified.
- Sears Craftsman 41AC150-1 and 41AC150-1M applications where the board label matches
- LiftMaster 3245 and 3255 style 315 MHz AC chain drive references when the parts diagram calls for 041AC050-1M
- Chamberlain PD210D, PD212D, and HD200D style references where confirmed by parts diagram
- Select 1/2 HP AC chain drive openers manufactured 2005 to 2015 with purple learn button Security+ technology
- 315 MHz Security+ accessories such as 371LM remotes and 377LM keypads where supported
- Not for 041AC050-2M, 041AC075-2S, 041AB050-2M, 041DB001-1C, 041AS050-1, or 045DCT unless specifically listed by the opener parts diagram
Also Known As / Related Part Numbers
Features & Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | Receiver logic board with end panel |
| Sears / Craftsman Reference | 41AC150-1 / 41AC150-1M reference family |
| LiftMaster Service Part | 041AC050-1M / 41AC050-1M |
| Application | Receiver logic board replacement for select 1/2 HP AC chain drive garage door openers |
| Drive Type | AC chain drive |
| Motor / Power Family | 1/2 HP AC residential garage door opener family where supported |
| 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 keypad, and compatible 315 MHz Security+ accessories |
| Notes | Commonly associated with 3245/3255 style and Chamberlain PD/HD chain drive references where parts diagram matches. |
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
This board is best identified by the original board label and the opener parts list. Similar 315 MHz chain drive boards may have different light socket/end-panel or capacitor layouts, so avoid ordering only from the outside opener cover number.
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
What LiftMaster part number matches Sears 41AC150-1?
This listing ties Sears Craftsman 41AC150-1 to the LiftMaster 041AC050-1M / 41AC050-1M receiver logic board family.
What type of opener is this board for?
It is for select 315 MHz Security+ AC chain drive openers, commonly 1/2 HP models from the 2005 to 2015 era when confirmed by parts diagram.
No. They are related-looking AC chain board families but should not be treated as interchangeable without the exact parts diagram.
What accessories are commonly used with it?
Compatible 315 MHz Security+ accessories commonly include 371LM style remotes and 377LM style wireless keypads when the opener supports them.
Does this board work with yellow learn button remotes?
No. Yellow learn button accessories are for Security+ 2.0 systems and are not the same as this purple learn button 315 MHz board family.
