LiftMaster 371LM 1-Button Security+ 315 MHz Remote Control
The LiftMaster 371LM is a one-button remote control for compatible 315 MHz Security+ systems. It is commonly used with LiftMaster, Chamberlain, Craftsman, and related garage door openers or receivers that have a purple learn button.
This is a simple single-access-point remote. It is a good choice when the customer only needs to operate one compatible opener or receiver channel on the 315 MHz Security+ platform.
Compatibility and Application
Use the 371LM with compatible purple learn button Security+ 315 MHz operators and receivers. The purple learn button is the key identifier for this remote family.
This remote is not for yellow Security+ 2.0, red/orange 390 MHz Security+, green 390 MHz Billion Code, or DIP-switch systems. Those radio families require different remotes.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | 1-button remote control |
| Part Number | 371LM |
| Application | Single compatible garage door opener, gate operator, or receiver channel |
| Compatible Operator Type | Security+ 315 MHz LiftMaster-style systems |
| Security Technology | Security+ 315 MHz |
| Learn Button Color | Purple |
| Number of Buttons | 1 |
| Notes | Older Security+ 315 MHz remote family |
Also Known As / Related Part Numbers
- 371LM
- 371LMC / G371LM references
- Related 315 MHz Security+ family: 370LM, 372LM, 373LM
- Commonly cross-referenced with Raynor 371RGD and select Chamberlain/Craftsman 315 MHz Security+ remote families
Technician Note
The 371LM is often confused with 971LM because both are single-button LiftMaster remotes. The learn button color separates them: 371LM is purple 315 MHz, while 971LM is red/orange 390 MHz.
Before Ordering
- Look for a purple learn button on the opener or receiver.
- Use this remote for one compatible device only.
- Choose 373LM if three buttons are needed on the same 315 MHz Security+ platform.
- Do not order for yellow, red/orange, green, or DIP-switch systems.
- Check receiver memory if the opener refuses to accept another remote.
Professional Advisory
Test the remote only when the door or gate is visible and operating safely. If the opener moves unpredictably or safety sensors are bypassed, have the system serviced before adding transmitters.
Product Questions & Answers
What frequency is the LiftMaster 371LM?
The 371LM is a Security+ 315 MHz remote control.
What learn button color matches the 371LM?
The 371LM matches compatible systems with a purple learn button.
Can the 371LM replace a 971LM?
No. The 971LM is a 390 MHz red/orange learn button remote, while the 371LM is a 315 MHz purple learn button remote.
What is the 3-button version of this remote family?
The LiftMaster 373LM is the related 3-button remote for compatible 315 MHz Security+ purple learn button systems.
Why does my opener click but not store the 371LM?
The receiver memory may be full, the opener may not be a purple-button 315 MHz model, or the receiver/control board may have a fault.
