Identifying your Liftmaster Garage Door Remote
Finding a compatible transmitter for your garage door remote can be very confusing. In this guide we will show you the steps of how to identify your compatible Liftmaster remote or Liftmaster keypad. The easiest way of finding the remote compatible with your Liftmaster garage door opener is to identify the color of the learn button of your logic board. This is on the back of the motor unit of your garage door. An example learn button is indicated below:

The learn button will be a square button near the center of your logic board. If you have an older model garage door opener, then there will be a set of dip switches that are used to program your opener instead of a learn button. Commercial GDO’s or gate openers might be located differently. Below you will find a reference for the different models of Chamberlain Liftmaster garage door remotes:
Amber - Security Plus (no ERT)
Purple - Security Plus (with ERT)
Green - Rolling Code
None - Dip Switch
If you have the security plus series:(Amber)
1 Button -
Liftmaster 971LM
2 Button -
Liftmaster 972LM
3 Button –
Liftmaster 973LM
Wireless Keypad –
Liftmaster 976LM
If you have the Security Plus (ERT) series:(Purple)
1 Button -
Liftmaster 371LM
2 Button -
Liftmaster 372LM
3 Button –
Liftmaster 373LM
Wireless Keypad –
Liftmaster 377LM
If you have the Rolling Code series:(Green)
1 Button -
Liftmaster 81LM
2 Button -
Liftmaster 82LM
3 Button –
Liftmaster 83LM
Wireless Keypad –
Liftmaster 66LM
If you have the Dip Switch Style:
1 Button -
Liftmaster 61LM
2 Button -
Liftmaster 62LM
3 Button –
Liftmaster 63LM
Wireless Keypad –
Liftmaster 66LM