The 6xLM series is LiftMaster's dip switch generation at 390 MHz, fitted to openers built between 1984 and 1992. These are the oldest LiftMaster remotes still in regular service. Every original part number is discontinued — but the openers themselves often still run fine, and a current remote will operate one.
Holding a 61LM? The 893MAX replaces it. It is tri-band across 310, 315 and 390 MHz, so it covers this generation and any newer LiftMaster on the property at the same time.
Open your existing remote. If there is a row of nine tiny code switches inside, you are in the right place. Any one of these also confirms it:
| Check | You have a 6xLM system if… |
|---|---|
| Coding | 9 code switches inside the remote |
| Frequency | 390 MHz |
| Learn button | Yellow, grey or white — the pre-1993 style |
| Circuit board number | Starts 41A3… |
| Manufacture date | 1984 to 1992 |
Careful with "yellow". The yellow on a 1984–1992 opener is not the same as the bright yellow learn button on a modern Security+ 2.0 unit. If your opener was made after 2011 and has a yellow learn button, you want Security+ 2.0 remotes instead. The giveaway is the code switches: this generation has them, Security+ 2.0 does not.
| Old part number | Buttons | Order this instead | Notes |
|---|---|---|---|
| 61LM / 61LMC | 1 | 893MAX | Tri-band 310/315/390 MHz |
| 62LM | 2 | 893MAX | Tri-band. The 380UT is being phased out — use the 893MAX. |
| 63LM | 3 | 893MAX | Tri-band 310/315/390 MHz |
| 64LM | 1, keychain | 890MAX | Mini keychain remote |
| 66LM | keypad | 878MAX | Wireless keypad, tri-band |
| CD-390 | keychain | 890MAX | Mini keychain remote |
| 375LM / 975LM | — | 893MAX | Tri-band replacement |
| Identifier | Format | Era | What to order |
|---|---|---|---|
| 9 code switches | Dip switch, 390 MHz — this series | 1984–1992 | 893MAX |
| Green learn button | Billion Code, 390 MHz | 1993–1997 | 893MAX — see the 8xLM series |
| Red / orange learn button | Security+ 390 MHz | 1997–2005 | 971LM — see the 97xLM series |
| Purple learn button | Security+ 315 MHz | 2005–2011 | 371LM — see the 37xLM series |
| Bright yellow learn button | Security+ 2.0 | 2011 onward | 891LM — see Security+ 2.0 remotes |
| Model | Buttons | Notes |
|---|---|---|
| 893MAX | 3 | Tri-band 310/315/390 MHz. The replacement for every remote in this series. |
| 890MAX | 3 | Mini keychain remote. Replaces the 64LM and CD-390. |
| 878MAX | keypad | Tri-band wireless keypad. Replaces the 66LM. |
| VKP1-LM | keypad | myQ Smart Garage video keypad — camera and intercom built in |
| VKP1-MYQ | keypad | Chamberlain-branded myQ video keypad |
The 811LMX is a commercial door remote. It works with commercial door receivers only and will not operate a residential garage door opener. If you have a garage door opener at home, use the remotes above.
The 374UT and 380UT are being phased out. For this generation the 893MAX is the better answer — and a universal needs a working remote to learn from, which the 893MAX does not. Reach for a universal only when the property also runs another brand.
| Model | Buttons | Status |
|---|---|---|
| 374UT | 1, mini | Being phased out — while stocks last |
| 380UT | 2 | Being phased out — while stocks last |
| Part | What it is |
|---|---|
| 10A14 | 12V battery for 61LM series remotes. The right battery for this generation — not the 3V used on later remotes. |
| 10-29C128 | Visor clip for LiftMaster remotes |
| 041D0541 | Keypad battery cover |
| 041D0621 | 877MAX cover only |
| VKP1-MYQ-BT1 | myQ video keypad rechargeable battery |
| RTM | Leather case for mini remotes |
This generation is dip switch coded, not learn-button programmed. If you are fitting a like-for-like older remote, open the working one, note the position of all nine switches left to right, and set the new one to match.
A current remote such as the 893MAX works differently — it programs at the opener. Press the learn button on the motor unit, then press the remote button within 30 seconds. No switches to set.
My 61LM stopped working — do I need a new opener? No. Change the battery first — these take a 12V 10A14, not the 3V cell used on newer remotes. If that does not fix it, the 893MAX works on the same opener.
What battery does a 61LM take? A 12V 10A14. This catches people out — the later LiftMaster remotes use a 3V coin cell.
Is the 61LM still made? No. Nothing in the 6xLM series is still produced.
My opener is from the 1980s. Is it worth keeping? If it runs quietly, reverses properly on an obstruction and the safety eyes work, a remote is far cheaper than a new opener. If it has no safety eyes at all, it predates the 1993 requirement and is worth replacing on safety grounds regardless of the remote.
Can I mix old and new remotes on one opener? Not on this generation. Dip switch remotes and learn-button remotes work differently — if you fit a 893MAX, program it at the opener and keep any surviving 61LM on its original switch setting.
The new remote programmed but the range is poor. Check the antenna wire hangs freely from the motor unit and is not coiled up or tucked away.
8xLM — green, 1993–1997 · 97xLM — red/orange, 1997–2005 · 37xLM — purple, 2005–2011 · Security+ 2.0 — yellow, 2011 on · not sure? start here
all LiftMaster remotes · wireless keypads · all remote controls
Not sure which remote you need? Send a photo of the inside of your old remote and of the opener's motor unit to parts@gatehousesupplies.com, or call 866-965-5599. We have been servicing LiftMaster equipment since 1993.