Genuine LiftMaster 41B773-1 control board for access control systems. Fits EL2000.
Specifications
| Part number | 41B773-1 |
|---|---|
| Type | Control Board |
| Brand | LiftMaster |
| Fits | EL2000 |
| Condition | Genuine OEM, new |
Is the board actually the problem?
Control boards are the most over-diagnosed part on any access control system. Work through this before ordering — several of these faults look identical from the outside and cost a fraction of a board.
| Symptom | Likely cause |
|---|---|
| Reader dead, no LED | Power first, then the board |
| Credentials read but the relay never fires | The relay side of the board |
| Intermittent reads | Wiring or the reader before the board |
| Programming will not save | Memory or the board |
| Erratic behaviour after a storm | Surge damage — a very common cause on entrance equipment |
Order by the number printed on the board, not by the model on the machine. Boards changed several times within the same model run, so two units with identical model numbers on the data plate can take different boards. Open the control box and read the number off the board itself.
Common questions
Will this fit my unit? Check the number printed on your existing board against the part number above. If it matches, or matches one of the alternate numbers listed, it fits. If you cannot read it, send us a photo.
Will I lose my programming? Yes. A new board arrives empty — resident directory, entry codes and settings all need re-entering. Export or write down your programming before you start if the old board still powers up.
Is this genuine? Yes, genuine OEM. Aftermarket boards exist for some models but firmware behaviour varies, and a control board is not the place to economise.
Can I fit it myself? Physically it is a few connectors and standoffs. The commissioning afterwards — limits, force, safety devices — is what needs care, and on a commercial or multi-family installation it needs to be done to UL325.
Related
all replacement parts · gate operators & accessories · safety equipment, sensors & loops · remote controls
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 install and service this equipment and would rather confirm it than have you fit a board that does not match. Since 1993.
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