Garage Door Opener Wiring Diagram (4-Wire & 3-Button)

Correct wiring is critical for a garage door opener to work safely and reliably. In this guide, you will find clear garage door opener wiring diagrams for the most common systems – 4-wire wall controls and 3-button garage door opener switches.

This article covers:

• Garage opener wiring diagram basics
• 4 wire garage door opener wiring diagram
• 3 button garage door opener wiring diagram
• How to wire a garage door opener button
• Linear and Raynor garage door opener wiring
• Commercial 3-button wall station wiring

All diagrams and explanations are written for homeowners and technicians.

Garage Opener Wiring Diagram – Basics

Most garage door opener wall controls use low-voltage wiring (typically 12–24V).
These wires connect the wall control to the motor unit, not directly to household power.

Common wire colors:

• Red / White – power and signal
• Black / White – ground or secondary signal

⚠️ Always disconnect power before working on wiring.

4 Wire Garage Door Opener Wiring Diagram

A 4-wire garage door opener is usually found in:

• Smart wall controls
• Keypad + wall button combinations
• Some Linear and commercial openers

Typical 4-wire configuration:

4 Wire Garage Door Opener Wiring Diagram (Text Layout)

Motor Unit Terminals
-------------------
RED    -> Red wire
WHITE  -> White wire
BLACK  -> Black wire
GREEN  -> Green wire

Wall Control
------------
Red    -> Power
White  -> Common
Black  -> Signal
Green  -> Data / Smart control

This setup is common on Linear garage door opener wiring diagrams and newer smart systems.

3 Button Garage Door Opener Wiring Diagram

A 3-button garage door opener wall station usually controls:

1. Up
2. Down
3. Stop

This design is extremely common in commercial garage door opener systems.

3 Button Garage Door Opener Wiring Diagram

3-Button Garage Door Opener Wiring Diagram (Text Layout)

[ UP ] ---- Wire 1 ---- Motor
[ DOWN ] -- Wire 2 ---- Motor
[ STOP ] -- Wire 3 ---- Motor
[ COM ] --- Common ---- Motor

This is also known as a 3 button garage door switch wiring diagram.

How to Wire a Garage Door Opener Button

For a standard wall button (single-button):

1. Locate the wall control terminals on the motor
2. Connect:
   • Wire 1 -> Terminal 1
   • Wire 2 -> Terminal 2
3. Polarity usually does not matter for simple buttons

This applies to:

• How to wire a garage door opener button
• Wiring garage door opener button
• Door opener wiring diagram (basic systems)

How to Wire a 3 Button Garage Door Opener

If you’re wiring a 3-button station:

1. Run 3 separate control wires + common
2. Match each button to its motor terminal
3. Confirm STOP button interrupts both UP and DOWN circuits

This is critical for commercial garage door opener 3 button wall station wiring.

Wiring Two 3-Button Garage Door Openers

For how to wire 2 3-button garage door opener stations:

• Each station must be wired in parallel
• Common wire shared
• Individual control wires kept separate

⚠️ Never wire stations in series.

Linear Garage Door Opener Wiring Diagram

Linear garage door openers often use:

• 3-wire or 4-wire wall controls
• Color-coded terminals on the motor

Typical Linear garage door wiring diagram:

This also applies to Linear garage door opener wiring diagram requests.

Raynor Garage Door Opener Wiring Diagram

Raynor systems commonly mirror LiftMaster commercial layouts:

• 3-button wall stations
• Low-voltage control wiring
• Clearly labeled motor terminals

If your Raynor unit uses a 3 button garage door opener wiring, follow the commercial diagram above.

Commercial Garage Door Opener 3 Button Wall Station Wiring

Used in warehouses and shops:

• Mandatory STOP button
• Dedicated UP / DOWN circuits
• Heavy-duty wall stations

This wiring is required by code in many regions.

Troubleshooting Wiring Issues

Safety Notes

• Never connect wall control wires to AC power
• Use low-voltage cable only
• Secure wiring away from moving parts

Summary

This guide covered:

• Garage opener wiring diagram
• 4 wire garage door opener wiring diagram
• 3 button garage door opener wiring diagram
• How to wire a garage door opener button
• Linear and Raynor wiring layouts
• Commercial wall station wiring

PDF