Introducció
The LiftMaster 855LM HomeLink Repeater Kit is designed to bridge compatibility between older vehicle HomeLink systems and newer Security+ 2.0 garage door openers. This kit allows vehicles equipped with HomeLink to operate Security+ 2.0 garage door openers, ensuring seamless integration and convenient access. The kit includes a repeater unit and a learning remote control for programming.
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Figure 1: LiftMaster 855LM HomeLink Repeater Kit, showing the main repeater unit and the included learning remote.
The kit consists of two primary components: the repeater unit and a learning remote control. The repeater unit plugs into a standard electrical outlet in your garage, ideally close to the garage door opener. The learning remote is used to program your vehicle's built-in HomeLink system to communicate with the repeater.
Característiques clau
- Converts non-compatible HomeLink signals into Security+ 2.0 compatible signals.
- Ensures compatibility with vehicles equipped with older HomeLink systems.
- Can be programmed to operate more than one Security+ 2.0 garage door opener.
- Includes a repeater unit and a learning remote control for easy setup.
- Advanced signal processing for reliable operation.
Instruccions de configuració
Follow these steps to set up your LiftMaster 855LM HomeLink Repeater Kit:
Step 1: Plug in the Repeater Unit

Figure 2: The HomeLink Repeater unit plugged into a standard electrical outlet.
- Locate a standard electrical outlet in your garage, preferably close to your garage door opener.
- Plug the LiftMaster 855LM Repeater unit into the outlet. Ensure the purple antenna wire hangs freely and is not coiled for optimal signal reception.
Step 2: Program the Learning Remote to your Garage Door Opener
The included learning remote control needs to be programmed to your Security+ 2.0 garage door opener first.
- On your garage door opener, locate the "Learn" button. The color of the learn button (e.g., yellow, purple, red/orange, green) indicates the type of Security+ technology. For Security+ 2.0, it is typically a yellow or purple button.
- Press and immediately release the "Learn" button on your garage door opener. The LED indicator will light up.
- Within 30 seconds, press and hold the button on the included learning remote control that you wish to use.
- Release the remote button when the garage door opener lights flash or two clicks are heard, indicating successful programming.
- Test the learning remote to ensure it operates your garage door opener.
Step 3: Program your Vehicle's HomeLink System

Figure 3: The HomeLink learning remote control used to program your vehicle's HomeLink system.
Refer to your vehicle's owner's manual for specific instructions on programming your HomeLink system. The general steps are as follows:
- Clear your vehicle's HomeLink memory (if applicable, refer to your vehicle manual).
- Position the included learning remote control 1-3 inches away from the HomeLink button you wish to program in your vehicle.
- Simultaneously press and hold both the desired HomeLink button in your vehicle and the programmed button on the learning remote control.
- Continue holding both buttons until the HomeLink indicator light in your vehicle changes from a slow flash to a rapid flash (or solid, depending on vehicle model). This indicates successful programming.
- Deixeu anar els dos botons.
- Press and immediately release the "Learn" button on the LiftMaster 855LM Repeater unit. The LED indicator will light up.
- Within 30 seconds, return to your vehicle and firmly press and hold the newly programmed HomeLink button for two seconds, then release. Repeat this press/hold/release sequence up to three times.
- The garage door opener lights should flash or two clicks should be heard, confirming successful synchronization.
Nota: If your vehicle's HomeLink system does not program after multiple attempts, consult your vehicle's owner's manual or the HomeLink website for additional troubleshooting steps.
Funcionament
Once your vehicle's HomeLink system is successfully programmed with the LiftMaster 855LM Repeater Kit, operating your garage door opener is straightforward:
- Ensure the repeater unit is plugged into a live electrical outlet in your garage.
- From inside your vehicle, press and hold the programmed HomeLink button.
- The garage door opener will activate, opening or closing the garage door.
- Release the HomeLink button once the garage door begins to move.
Nota: Some vehicle HomeLink systems may require holding the button for a slightly longer duration (e.g., 2-10 seconds) for activation. If the garage door does not respond immediately, try holding the button for a few extra seconds.
Manteniment
The LiftMaster 855LM HomeLink Repeater Kit requires minimal maintenance. To ensure optimal performance and longevity:
- Mantenir net: Periodically wipe the repeater unit and remote control with a soft, dry cloth to remove dust and debris.
- Font d'alimentació: Ensure the repeater unit remains plugged into a reliable power source. In case of a power outage, the repeater will not function until power is restored.
- Posició de l'antena: Keep the purple antenna wire on the repeater unit straight and uncoiled for the best signal reception.
- Bateria remota: The included learning remote control uses a battery. If the remote stops functioning, replace the battery as needed (refer to the remote's specific instructions for battery type and replacement).
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Vehicle HomeLink does not program. | Incorrect programming steps, vehicle HomeLink memory not cleared, remote battery low. |
|
| Garage door does not open/close after programming. | Repeater not powered, repeater not programmed to opener, vehicle HomeLink not programmed to repeater. |
|
| Abast limitat o funcionament intermitent. | Repeater placement, antenna obstruction, electrical interference. |
|
| Multiple repeaters causing interference. | Too many repeaters in close proximity. |
|
Especificacions
| Atribut | Detall |
|---|---|
| Número de model | 855 LM |
| Marca | LiftMaster |
| Fabricant | Sentex/Chamberlain Brands |
| Pes de l'article | 1.28 unces |
| Dimensions del producte | 6 x 4 x 1.5 polzades |
| Color | Negre |
| Característiques especials | Advanced Signal Processing, Remote Management |
| Components inclosos | Instruction manual, Repeater, Learning Remote Control |
| Compatibilitat | Older HomeLink systems with Security+ 2.0 garage door openers |
Garantia i Suport
For specific warranty information regarding your LiftMaster 855LM HomeLink Repeater Kit, please refer to the documentation included with your purchase or visit the official LiftMaster website. For technical support, programming assistance, or to inquire about replacement parts, contact LiftMaster customer service directly.
LiftMaster Oficial Weblloc: www.liftmaster.com





