Genuine Chamberlain / LiftMaster 041AB050-2M receiver logic board — the 315 MHz Security+ (purple learn button) logic board with end panel for the AC belt-drive openers built 2005–2015: Chamberlain WD822K / WD822KD, WD832K / WD832KD, HD600, LW3500 and the LiftMaster 3280, 3280C and 3280-267. Same board under the numbers 41AB050-2, 41AB050 and 41A5688. Still current from Chamberlain Group.
Order by the number on your old board, not the opener model. Chamberlain used several boards across these model families as the radio changed. Pull the light lens, read the number on the board (41AB050-2, 41AB050-1 or 41AB050), and match it. A 41A5483-family board is 390 MHz red/orange-button and is a different part, even in a WD822K.
Put the opener on a surge protector when you fit the new board. Lightning and utility surges are the most common reason a garage door opener logic board is replaced, and a new board on the same unprotected outlet is at the same risk. A plug-in surge protector rated for motors is a small cost next to a second board.
Specifications
| Part number | 041AB050-2M (41AB050-2, 41AB050, 41A5688). Supersedes 41AB050-1 in the LW3500 |
|---|---|
| Type | Receiver logic board, AC belt drive, with end panel |
| Radio | 315 MHz Security+ rolling code — purple learn button; remotes 373LM, 893MAX, 813LMX, keypad L979M |
| Era | 2005–2015 AC belt-drive openers |
| Not for | DC / battery-backup openers; chain drives; yellow-button (2011 on Security+ 2.0) boards such as 041D8xxx; the 390 MHz 41A5483 family |
| Condition | Genuine Chamberlain Group, new |
Fits
| Opener | Note |
|---|---|
| Chamberlain WD822K, WD822KD | Purple learn button versions |
| Chamberlain WD832K, WD832KD | Not the WD832KEV (yellow button, different board) |
| Chamberlain HD600 | |
| Chamberlain LW3500 | Shipped with the 41AB050-1; this board replaces it |
| LiftMaster 3280, 3280C, 3280-267 | |
| Chamberlain LW2000 / 248739 (Craftsman) | Listed on these by our records where the old board reads 41AB050 — confirm by the board number |
Is the board the problem?
The logic board is the brain, and it is blamed for faults it did not cause. Work through this first:
| Symptom | Check first |
|---|---|
| Opener dead, no lights | Power first — outlet, then the board |
| Wall button works, remotes do not | The receiver on this board, after the remote batteries, the antenna wire and the light bulb (LED bulbs kill range) |
| Runs one direction only | Often the board, but check the limits and the safety sensors first |
| Will not close, reverses on the way down | Safety sensors, not the board — check both LEDs |
| Resets or reboots mid-cycle | The board |
Common questions
My old board says 41AB050-1.
Order this one; Chamberlain's conversion list supersedes the -1 with the 041AB050-2M.
Do I need new remotes?
No, but every remote and keypad has to be re-learned to the new board.
Is the end panel included?
Yes — the board comes mounted in its end panel with the terminal strip.
Related
WD822K parts · WD832KEV parts · HD600 parts · 3280 parts · 373LM remote · 893MAX remote
Not sure which board you need? Send a photo of the number printed on your existing board to parts@gatehousesupplies.com or call 866-965-5599. We would rather confirm it than have you fit the wrong board.
