LiftMaster 78LM Multi-Function Control Panel
The LiftMaster 78LM is a multi-function wired wall control panel for compatible garage door openers. It provides door control, opener light control, and a lock function from a wall-mounted control station inside the garage.
This wall control is commonly used as a replacement on many older LiftMaster and Chamberlain-family residential openers. Because wall controls changed across opener generations, the existing control type and opener model should be checked before ordering.
Common Use and Compatibility
The 78LM is commonly associated with compatible LiftMaster, Chamberlain, Sears Craftsman, and Raynor residential garage door openers that support a hardwired multi-function wall control.
- Select LiftMaster residential garage door openers with compatible wall control terminals
- Select Chamberlain, Sears Craftsman, and Raynor openers using compatible Security+ wall control wiring
- Older and mid-generation residential openers where light and lock features are supported
- Not a universal replacement for all myQ, Security+ 2.0, or yellow learn button wall controls
Also Known As / Related Part Numbers
- 78LM
- 78LMC
- 41A5273-1
- 41A5273-2
- Multi-function control panel
- LiftMaster wall control panel
- Garage door opener wall station
Technician Note
If the current wall console has digital menus, timer-to-close, motion sensing, or myQ programming features, do not replace it with a 78LM unless the opener documentation confirms compatibility. Similar-looking wall controls can use different communication styles.
Before Ordering, Confirm
- The opener model supports the 78LM or compatible multi-function wall control
- The existing wall control wiring is two-conductor low-voltage wire
- The light and lock features are supported by the opener
- The opener is not a newer system requiring a Security+ 2.0 or myQ control panel
- The wall control issue is not caused by damaged wire or loose terminals
Professional Advisory
Always disconnect power before servicing opener control wiring. If the wall control is dead, flickering, or only works intermittently, inspect the low-voltage wire and opener terminals before assuming the wall panel is the only failed part.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Chamberlain Group |
| Product Type | Multi-Function Wall Control Panel |
| Part Number | 78LM |
| Application | Garage door opener wall control replacement |
| Compatible Operator Type | Select residential openers with compatible hardwired wall control circuits |
| Functions | Door operation, opener light control, lock feature |
| Wiring | Low-voltage two-conductor wall control wiring |
| Notes | Verify before using on Security+ 2.0, myQ, or yellow learn button openers. |
Questions & Answers
What functions does the LiftMaster 78LM provide?
The 78LM provides garage door open and close control, opener light control, and a lock feature that can disable remote control operation on compatible systems.
Is the 78LM hardwired?
Yes. The 78LM is a hardwired multi-function wall control and connects to the opener with low-voltage two-conductor bell wire.
Can the 78LM program remotes?
The 78LM is mainly used for door, light, and lock functions. Remote programming features depend on the opener and control style, so the opener manual should be checked.
Will the 78LM replace a myQ or Security+ 2.0 wall control?
Do not assume the 78LM replaces a myQ or Security+ 2.0 digital wall control. Many newer yellow learn button systems require a different compatible control panel.
What is the lock button used for?
The lock button is used to block remote-control operation on compatible openers while still allowing the wall control to operate the door.
