LiftMaster 78LM Multi-Function Wired Wall Control – Light, Lock & Adjustable Timer

The LiftMaster 78LM is a multi-function wired garage door opener wall control designed for compatible LiftMaster, Chamberlain, and select Craftsman residential garage door openers.

It replaces a basic single-button wall station while adding convenient control of the garage door, opener lighting, and security lock function from inside the garage.

The 78LM is designed for older compatible opener generations using Green, Red/Orange, or Purple Learn buttons.

### Product Features

- Genuine LiftMaster multi-function wall control
- Model 78LM / 78LMC
- Cross-reference 41A5273-1 / 41A5273-2
- Wired low-voltage wall control
- Opens and closes one garage door
- Independent opener light control
- Adjustable opener light timer
- Lock / security function
- Illuminated main push button
- No batteries required
- No wireless programming required for wall-control operation
- Designed for select older LiftMaster, Chamberlain, and Craftsman openers

### Specifications

- Manufacturer: LiftMaster / Chamberlain
- Model: 78LM
- Alternate Model: 78LMC
- Cross-Reference: 41A5273-1 / 41A5273-2
- Product Type: Multi-Function Garage Door Wall Control
- Installation: Wired Interior Wall Mount
- Door Capacity: 1 Garage Door
- Door Control: Yes
- Light Control: Yes
- Adjustable Light Timer: Yes
- Lock Function: Yes
- Batteries Required: No
- Application: Residential Garage Door Openers

### What Is It Used For?

The 78LM provides convenient indoor control of a compatible garage door opener.

From the wall console, the user can:

- Open the garage door
- Close the garage door
- Turn the opener lights on or off
- Adjust how long the opener light remains on
- Activate the security lock function

It is a common replacement for older LiftMaster wall controls when the original button becomes worn, damaged, or unreliable.

### Independent Light Control

The dedicated LIGHT button allows the opener lights to be turned on or off without operating the garage door.

LiftMaster also provides an adjustable light timer so the user can control how long the opener lighting remains illuminated after activation. :contentReference[oaicite:1]{index=1}

### Security Lock Function

The LOCK feature can disable compatible handheld remote-control operation while the lock function is active.

This can provide additional security when:

- Sleeping
- Traveling
- Away from home for an extended period

The wired wall control remains available according to the opener's designed operation.

### Learn Button Compatibility

The 78LM is commonly compatible with select opener systems using:

GREEN LEARN BUTTON
- Billion Code / older LiftMaster systems

RED / ORANGE LEARN BUTTON
- Security+ 390 MHz systems

PURPLE LEARN BUTTON
- Security+ 315 MHz systems

Compatibility depends on the exact opener model and wall-control circuitry. :contentReference[oaicite:2]{index=2}

### Important Compatibility Warning

The 78LM is NOT a universal LiftMaster wall control.

It should NOT be assumed compatible with newer openers using:

- Yellow Learn Button
- Security+ 2.0
- Security+ 3.0
- White Learn Button
- Newer digital/myQ wall-control systems

If your opener has a Yellow or White Learn button, verify the required wall-control model before ordering.

### Common Compatible Models

Known compatible applications include select models such as:

- LiftMaster 1245
- LiftMaster 1255
- LiftMaster 1270
- LiftMaster 1280
- LiftMaster 1245R
- LiftMaster 1255R
- LiftMaster 1265R
- LiftMaster 2220
- LiftMaster 2245
- LiftMaster 2255
- LiftMaster 2265
- LiftMaster 2280
- LiftMaster 2500
- LiftMaster 2575
- LiftMaster 2585
- LiftMaster 2595
- LiftMaster 1345
- LiftMaster 1355
- LiftMaster 3265
- LiftMaster 3270
- LiftMaster 3280
- LiftMaster 3500
- LiftMaster 3585
- LiftMaster 3595
- LiftMaster 3800
- LiftMaster 3850

Always verify the exact opener model before ordering.

### 78LM vs. Newer Wall Controls

78LM:
- Older generation
- Green / Red-Orange / Purple compatible applications
- Door control
- Light control
- Adjustable light timer
- Lock function

882LMW:
- Security+ 2.0 generation
- Yellow Learn Button applications

L955W:
- Security+ 3.0 generation
- White Learn Button applications

These controls should not be considered interchangeable.

### Package Contents

Includes:

- 1 – LiftMaster 78LM Multi-Function Control Panel

Mounting hardware and wiring may vary by packaging. Garage door opener, remotes, safety sensors, and other accessories are not included unless specifically stated.

### Important Installation Note

Disconnect electrical power to the garage door opener before servicing wall-control wiring.

Install the control:

- Within sight of the garage door
- At least 5 feet above the floor
- Out of reach of small children
- Away from moving door components

After installation, test:

- Open / Close function
- Light control
- Adjustable light timer
- Lock function
- Safety reversing sensors
- Automatic reversal

before returning the opener to normal service.