Fixing the LiftMaster Error Code 1-4 | A Homeowner’s Guide

Is your garage door acting up and displaying the diagnostic code 1-4? Don’t worry; we’re here to help you diagnose and fix the issue. In this guide, we’ll explain why this error occurs, describe the behaviors of the garage door, provide symptoms and resolutions based on the amber and green lights, and offer tips for prevention and maintenance to keep your garage door in top shape.

Why the Error is Occurring

The error code “1 Up 4 Down” is displayed when the safety sensors of your garage door opener were obstructed or misaligned for less than 4 seconds.

Behaviors of the Door/Opener

• The garage door starts in the fully open or stopped position.
• When the garage door begins to close, it reverses to the open position.
• The garage door does not move and remains in the open position.
• The Garage Door Opener will not close, and the opener lights flash or click 10 times.
• If no lights are installed, you will hear the opener click while attempting to flash the lights.

Note: This feature is not available on garage door openers or replacement logic boards manufactured after February 3, 2022.

Symptoms and Resolutions Based on LED Lights

Amber LED ON, Green LED Flickers Momentarily:

• Symptom: Intermittent interruptions; someone or something passed through the sensors.
• Resolution: Normal operation – no action necessary.

Amber LED ON, Green LED Slightly Flickering:

• Symptom: Sensors are slightly out of alignment.
• Resolution: Realign the Safety Sensors. The Receiving (Green) Sensor should be solid to indicate they are aligned.

Prevention and Maintenance Tips

Preventing issues with your garage door can save you time and money. Here are some tips for keeping your garage door in excellent condition:

• Regular Inspection: Periodically inspect the safety sensors to ensure they are clean and aligned correctly. Remove any obstructions near the sensors.
• Lubrication: Lubricate moving parts such as hinges, rollers, and tracks to reduce friction and extend the life of your garage door.
• Tighten Loose Hardware: Check for loose nuts, bolts, and screws on your garage door and opener. Tighten them as needed to prevent accidents.
• Test Safety Features: Regularly test the safety features of your garage door opener, including the reversal mechanism and photo-eye sensors. Make sure they are working correctly.
• Professional Maintenance: Consider scheduling professional maintenance at least once a year to address any potential issues before they become major problems.
• Clear the Path: Keep the area around your garage door clear of debris and obstacles. This will prevent sensor obstructions and ensure smooth operation.

Conclusion

In conclusion, understanding the 1-4 error code and its causes, behaviors, symptoms, and resolutions can help you quickly address issues with your garage door. By following prevention and maintenance tips, you can keep your garage door running smoothly and ensure the safety of your family and property. If you encounter persistent problems, don’t hesitate to seek professional assistance for repairs and maintenance.