LiftMaster garage door openers are some of the most popular options we have today. And if you own one of those, chances are you’ve experienced an issue with it before, one way or the other.
That is completely normal. Garage door openers have safety features that sometimes affects the regular operation of the garage door. While these features are there to prevent accidents and the LiftMaster opener from damaging, it can be frustrating. So this post is your actionable guide on LiftMaster garage door opener troubleshooting. Let’s get into it.
These are the most common problems you may encounter with your Liftmaster garage door opener.
- Garage door reverses when opening or closing
- The garage door opens partially
- Garage door opener not working
We will discuss these common issues in detail and teach you how to troubleshoot your LiftMaster garage door opener when you encounter them.
Garage Door Reverses when opening or closing.
If your garage door reverses anytime you open or close it, there could be a problem with your safety sensor, incorrect force settings, or there is an obstruction on the doorway.
Safety sensor issue
To prevent the garage door from injuring someone in the door, or damaging an item in the way of the door, all models of LiftMaster garage door openers come installed with a safety sensor.
For the door to close correctly without reversing, the safety sensors need to be aligned perfectly, and there should be nothing in the way of the light beam.
When the safety sensor is not properly aligned, or something is obstructing the light beam, the garage door will fail to close. The LiftMaster garage door opener lights will flash for ten times.
To troubleshoot your LiftMaster safety sensors
- Check if something is blocking the way of the safety sensor. Eliminate any item in between the sensors
- Now, check if the safety sensors are misaligned. If the LED lights on the sensors are off or flickering, it means the sensors are not properly aligned
- To align the safety sensors, loosen the wing nut and keep adjusting the position of the sensor until the green LED light turns on. Tighten the wing nut to hold the sensor in place.
- Now try closing the door again with your remote or door control
The safety sensor troubleshooting steps should solve the issue for most homeowners. However, if it does not fix yours, try the next one.
Open and Close Travel Limits
If your garage door fully closes, touches the floor, and then reverses back up, then you need to decrease the travel limit. Think of a garage door’s travel limit as the distance it needs to travel to close or open entirely.
When the travel limit exceeds the distance the door travels, the LiftMaster garage door opener assumes there is an obstruction in the way of the door, so it reverses.
To troubleshoot this issue
- Find a step ladder and place it beneath your LiftMaster garage door opener.
- Locate the two Travel Limit dials on either the left or right side of your garage door opener, depending on where you are facing. They are denoted by a garage door with an arrow pointing up or down.
- To reduce the travel limit, turn the dial with a flat screwdriver in the direction opposite to the arrow shown beneath the dial. A full turn of the dial means you are reducing the travel limit by 2inches.
- Test run your garage door. If the door closes entirely without reversing, the issue has been fixed, else repeat step 3.
- After you reduce the travel limit, and the door doesn’t reach the floor when you close, increase the closing travel limit. At this stage, it’s all about fine-tuning till your garage closes properly without reversing.
Repeat the same steps if your garage door opens and reverses. But this time use the Opening travel limits dial (Icon with the arrow pointing up)
The garage door opens partially.
LiftMaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening. This feature prevents the motor inside the garage door opener from damaging.
Damaged garage door tracks, jamb or rollers
The resistance can be in the form of a damaged garage door tracks, door jambs, or garage door rollers. To fix this issue and get your LiftMaster garage door opener working again, follow these troubleshooting steps.
- Close the door, with either the door control or the remote control
- Pull the emergency release handle down and back towards the garage door opener. This will disconnect the garage door opener from the door
- Slowly open the garage door manually, with your hand, checking to see if there is any resistance or obstruction, making it hard to open the door.
- Examine the tracks, jambs and garage door rollers, and pay attention to the areas where the garage door is stopping
- If the door is sticking or binding, fix the issue on your own if you consider yourself handy with tools. Else call a garage door technician to fix it.
- To reconnect the garage door to your LiftMaster garage door opener, manually close the garage door, pull the emergency release handle down. Now press the remote control. This will cause the trolley to move into position and reconnect to the garage door.
- Try opening the garage door with the remote and see what happens
These steps should fix most doors. However, if your door still does not open fully, the next troubleshooting steps should solve the issue.
Force Adjustment Settings
If there were no issues found with the previous troubleshooting steps, great, it’s time to increase the force settings of your LiftMaster garage door opener. Increasing the force setting means giving your garage door opener more energy to open or close your garage door.
Before you adjust the force setting of your garage door opener, ensure your garage door tracks, jambs, and rollers are in good condition. You might damage the motor of your garage door opener if there is a lot of resistance from the door tracks.
- Locate the Manual Force Adjustment dials at the back of the LiftMaster garage door opener. They are usually blue in color
- Increase the Opening Force setting slightly
- Now try opening the garage door once again with the remote control. Repeat step 2 if the garage door still does not open fully
- If the door opens at least 5ft, you may need to increase the opening travel limit
Garage Door Opener Not Working
Before you think of replacing your LiftMaster Garage Door Opener, perform these checks
Check Remote Batteries
If your garage door opener is not opening, chances are your remote batteries are dead, and you need to replace it. Replacement batteries are dirt cheap, and here are my top two recommendations.
|3 Replacement Batteries For Liftmaster 371LM Garage Door Remote||Check Current Price|
|3 Replacement Batteries For Liftmaster 373LM Garage Door Remote||Check Current Price|
Check Power Supply to Garage Door Opener
If your garage door opener is not responding, you need to check if it is on. Verify if your garage door opener is plugged correctly into the socket outlet. Also, check for any signs of damage on the power cable.
Hi, my name is John, and I’m the founder of Garage Adviser. I have worked in the garage industry for over fifteen years and specialized in areas such as garage door repairs, epoxy flooring, garage shelving and storage, and garage gym construction. Now I work as a Home Improvement Consultant. During my free time, I like to write about the knowledge I’ve acquired over the years, or watch football with my twelve-year-old son.