LiftMaster Logic Board Cross Reference
LiftMaster Logic Board Cross Reference
The logic board is the circuit board inside the opener — the part that receives the remote signal and drives the motor. This page tells you which board you need, and it is honest about the ones we cannot get. Find your old board number in the chart, then check whether a current replacement exists.
Start here: read the number off your old board.
- Unplug the opener at the wall.
- Take the light lens and end panel off — the board is behind it.
- The part number is printed on the board itself, usually along one edge. It will start 41A, 41D, 041AC, 041AB or 041DB.
- Match it in the chart below.
Do not order from the model number on the front of the opener — the same model was built with different boards across its production run.
Before you spend on a board, rule out the cheap faults. A dead opener is often a capacitor, a limit switch or the safety sensors rather than the board. If the motor hums but nothing moves, that is usually the capacitor or a stripped gear. If the door will not close and the sensor light blinks, that is the sensors. Boards fail after power surges and lightning — if that is what happened, the board is the likely culprit.
1. Current Boards — These Are Available
Six boards cover every LiftMaster residential opener built from 2005 onward. If your old board matches one of these or supersedes into one, you can order it today.
| Board | Fits | Notes |
|---|---|---|
| 041AC050-2M | AC chain drive, deluxe end panel | 1/2 HP. Replaces 41AC050-2 and 41AC150-2 |
| 41AC075-2S | AC chain drive, 3/4 HP | Single capacitor units only — see the warning below |
| 41AC050-1 | AC chain drive, standard end panel | Replaces 41AC050-1 |
| 041AB050-2M | AC belt drive | Replaces 41AB050-2 |
| 41DB001-1 | DC belt drive | Replaces 41DB001-1 |
| 041DJ001B | DC jackshaft, model 3800 / RJO | Complete with mounting plate |
| 041A5507-7C | DC belt drive with battery backup | Two piece board, 390 MHz era |
3/4 HP owners — single capacitor or dual? The 41AC075-2S above fits single capacitor units only. The dual capacitor version, 41AC075-2A, is discontinued and there is no substitute — the 2S will not work in its place. Count the capacitors in your opener before ordering, and call (866) 965-5599 if yours has two.
2. Historical Cross Reference
Use these charts to identify what you have. Boards marked discontinued are no longer manufactured and we cannot supply them — they are listed so you can identify your board and know where you stand.
Operators built 1993–1997 — 390 MHz Billion Code with safety sensors
| Deluxe chain or belt drive | Standard chain drive | Screw drive |
|---|---|---|
| 41A4252, -4, -6, -6A, -6B, -6C, -6D, -6E, -6F, -6G | 41A4252-1, -5, -7, -7A, -7B, -7C, -7D, -7E, -7F, -7G | 41D4674-1C, -1D, -1E, -1F, -1G |
All boards in this generation are discontinued, including the 41A4252-6G, 41A4252-7G and 41D4674-1G that were previously listed as the replacements. Nothing in this range is obtainable. If your opener is from this era and the board has failed, a new opener is the only route — see replacement garage door openers.
Operators built 1997–2005 — 390 MHz Security+ one piece board
| Type | Board numbers |
|---|---|
| Deluxe chain drive | 41A5021, -B, -C, -D, -E, -F, -G, -H, -I |
| Standard chain drive | 41A5021-1, -1B, -1C, -1D, -1E, -1F, -1G, -1H, -1I |
| Belt drive | 41A5021-D, -5E, -5F, -5G, -5H, -5I |
| Chamberlain screw drive | 41D4674-14, -14D, -14E, -14F, -14G, -14H |
| LiftMaster screw drive | 41D4674-10, -10C, -10D, -10E, -10F, -10G, -10H |
| Low profile screw drive | 41A5389-1, -1C, -1D, -1E |
This generation is discontinued. The one exception: if your board reads 041A5389-1E on a 2110, 2220, 3110 or 3220 screw drive, the current 041AS050-1 replaces it. Everything else in this range is unavailable.
Operators built 2001–2005 — 390 MHz Security+ two piece board
| Type | Original | Status |
|---|---|---|
| Chain drive, deluxe end panel | 41A5483 | 41A5483B — discontinued |
| Chain drive, standard end panel | 41A5483-1 | 41A5483-1B — discontinued |
| AC belt drive | 41A5483-4 | 41A5483-4B — discontinued |
| DC belt drive, no battery backup | 41A5507 | 41A5507B — discontinued |
| DC belt drive, with battery backup | 41A5507-6 | 041A5507-7C — available |
Operators built 2005 to current — 315 MHz Security+ two piece board
This is the generation we can supply in full. All six boards are in section 1 above.
| Type | Board |
|---|---|
| AC chain drive, deluxe end panel | 041AC050-2M — 1/2 HP |
| AC chain drive, 3/4 HP single capacitor | 41AC075-2S |
| AC chain drive, 3/4 HP dual capacitor | 41AC075-2A — discontinued, no substitute |
| AC chain drive, standard end panel | 41AC050-1 |
| AC belt drive | 041AB050-2M |
| DC belt drive | 41DB001-1 |
| DC jackshaft, model 3800 | 041DJ001B |
3. Not Sure? Call Us
Boards are the one part where guessing is expensive. If your number is not on this page, or you are not sure whether your 3/4 HP unit has one capacitor or two, call (866) 965-5599 with the number off the board and we will tell you straight whether we can supply it — including when the answer is no.
More LiftMaster Parts
All LiftMaster opener parts · Safety sensor eyes and brackets · Wall controls and door arms · Replacement openers