Sears Craftsman 41DB101-1 Receiver Logic Board
The Sears Craftsman 41DB101-1 Receiver Logic Board is a replacement receiver logic board assembly for select Sears Craftsman, LiftMaster, and Chamberlain residential garage door openers. This control board manages the opener radio receiver, remote and keypad memory, wall control input, safety sensor circuit, motor control commands, light relay functions, and basic opener logic on compatible units.
This batch of boards is part of the older Security+ 315 MHz purple learn button family. These boards are not the same as newer yellow learn button Security+ 2.0 boards, older red/orange 390 MHz boards, or very old DIP switch radio systems. Because the end panel, connector layout, motor style, and drive type can change between opener families, the original board label and opener model number should be matched before replacement.
What This Board Does
This receiver logic board acts as the main control center for the opener. In a compatible select residential garage door opener applications; verify by model and board number opener, it interprets signals from the wall control, safety reversing sensors, remotes, keyless entry, and internal limit/force circuits, then sends the proper command to the motor and light system. When the original board fails, the opener may have no response, intermittent operation, remote programming problems, keypad issues, lights that do not behave correctly, or safety sensor communication errors.
Before replacing the board, inspect incoming power, the wall control circuit, safety sensor wiring, accessory wiring, and visible board damage. A surge, shorted wall button wire, water intrusion, or failed accessory can damage a replacement board if the cause is not corrected first.
Compatible With
This board is commonly associated with Sears Craftsman model 139.53919D and related 41DB001-1 / 41DB101-1 receiver logic board applications. The model list below is intended to help match the correct opener family, but the original board number and parts diagram should still be used as the final check.
Common Compatible Models
- Sears Craftsman 139.53919D
- Sears Craftsman 132B2274-1 reference, when confirmed by original board and parts diagram
- Select Chamberlain / LiftMaster compatible 41DB001-1 receiver logic board applications
Additional Compatible Product Families to Verify
- Select 315 MHz Security+ purple learn button Sears Craftsman openers using the 41DB001-1 board family
- Select residential opener heads where the original board label shows 41DB001-1, 41DB101-1, or 41DB001-1C
Compatible Remote and Keyless Entry Families
- 371LM remote control family on compatible 315 MHz Security+ systems
- 377LM wireless keyless entry family on compatible 315 MHz Security+ systems
- Purple learn button Security+ accessories
Important Compatibility Notes
- For select Sears Craftsman, LiftMaster, and Chamberlain residential garage door openers only.
- Not for yellow learn button Security+ 2.0 openers.
- Not for red/orange 390 MHz Security+ openers unless the parts diagram specifically calls for this board.
- Not for older DIP switch systems.
- The end panel and connector layout must match the original board.
- Remote and keypad compatibility is helpful, but it does not replace board-number verification.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain / Sears Craftsman |
| Product Type | Receiver Logic Control Board Assembly |
| Part Number | 41DB001-1C / 41DB101-1 |
| Application | select Sears Craftsman residential garage door openers using 315 MHz Security+ radio technology |
| Drive Type | Select residential garage door opener applications; verify by model and board number |
| Frequency / Security | 315 MHz Security+ |
| Learn Button | Purple learn button on compatible units |
| Common Remote Family | 371LM |
| Common Keyless Entry Family | 377LM |
| Notes | Match the original board number, opener model, learn button color, end panel style, and connector layout before installation. |
Also Known As / Related Part Numbers
The numbers below are commonly related to this board family, older Sears Craftsman board labels, LiftMaster replacement board labels, or common search variations. Related numbers should be matched carefully because not every 315 MHz purple learn button board is interchangeable.
- 41DB001-1C
- 41DB001-1
- 41DB101-1
- 41DB101
- 132B2274-1
- 139.53919D receiver logic board
- Sears Craftsman 315 MHz logic board
- LiftMaster Chamberlain 315 MHz receiver logic board
Technician Note
Do not choose this board by remote compatibility alone. A 371LM remote or 377LM keypad reference usually points to a 315 MHz Security+ system, but the board still has to match the drive type, end panel style, connector layout, motor harness, and Sears model number. A screw drive board, belt drive board, and chain drive board can all be 315 MHz purple learn button boards while still being different parts.
When replacing the board, transfer wires one at a time or photograph the original wiring first. After installation, remotes and keypads normally need to be reprogrammed, and the safety reversal system should be tested before returning the opener to service.
Before Ordering, Confirm
- Original board label shows 41DB001-1C, 41DB001-1, 41DB101-1, or a confirmed related number.
- Opener model is Sears Craftsman 139.53919D or a documented compatible model.
- System uses 315 MHz Security+ radio technology with compatible 371LM / 377LM accessory family.
- End panel, terminal locations, and harness connectors match the original board.
- The opener is not a yellow learn button Security+ 2.0 unit.
Professional Advisory
This is an electronic replacement part installed inside the garage door opener powerhead. Disconnect power before service and avoid working on energized wiring. If the opener shows burned wiring, water damage, repeated board failure, motor failure, unsafe door movement, or damage from a lightning surge, the system should be inspected by a qualified garage door technician before a new board is installed.
Important Ordering Warnings
- 41DB001-1C should not be substituted for other purple learn button boards by appearance only.
- Some replacement board housings may not match older opener cases without confirming the correct end panel style.
- Surge or accessory wiring damage should be corrected before installing the replacement board.
Questions & Answers
Which Sears Craftsman model is most commonly tied to this board?
This board is most commonly tied to Sears Craftsman model 139.53919D and the 41DB001-1 / 41DB101-1 receiver logic board family.
What remote family is normally used with this board?
Compatible 315 MHz Security+ systems commonly use the 371LM remote control family and the 377LM wireless keyless entry family.
Is 41DB001-1C the same as 41DB101-1?
They are commonly treated as related board references for the same Sears Craftsman 315 MHz receiver logic board family, but the original board label and opener model should still be matched.
Can this board replace any purple learn button board?
No. Purple learn button indicates 315 MHz Security+, but the drive type, end panel, connector layout, and board number must also match.
What usually needs to be done after installation?
After installation, remotes and keypads usually need to be reprogrammed and the opener should be tested for proper wall control, safety sensor, light, and travel operation.
