Liftmaster Error Code 4-2 [How to Fix]

Liftmaster Error Code 4-2

Liftmaster Error Code 4-2 – Liftmaster is a door automation company that offers a complete and combined solution for door automation for both industrial and residential buildings. 

Complaints of Liftmaster error 4-2 are not that rare when you browse online forums. You might face error code 4-2 when the operator detects too much force being used when trying to open the garage door. 

In this case, the door stops before reaching the completely open position. So, if you are wondering how to fix the issue, don’t worry. In this article, we’ll show you how you can fix the error 4-2 on Liftmaster. 

Liftmaster Error Code 4-2 

Liftmaster Error Code 4-2

Garage door openers are designed with manual or electric controls to make setup and adjustment easy. These adjustments let you to regulate the amount of force needed to open and close the door. 

There can be a lot of issues that an automated door can cause an error 4-2 is one of them. 4-2 indicates that the up arrow will flash 4 times followed by the down arrow flashing 2 times, this can be fixed by the following solutions.

Fix Alignment 

We can say that the garage doors are not aligned properly. So, troubleshooting this error is not that difficult, all you need to do is to fix the alignment of the garage door. 

Remove Obstructions

Garage door openers are designed to give obstruction notifications if the garage door meets an obstruction. Check if there is an obstruction because there is a possibility of an obstruction in the tracks. 

If the door makes contact with an obstruction while opening, the door will stop, the opener will beep and the lights will flash five times. 

Therefore, we can say that you might encounter this issue because of other material disrupting the communication between your devices. 

Check Door Balance 

Before making any adjustments to your garage door opener, it is recommended that you test the balance of your garage door. 

Remember that your garage door must be properly balanced in order to set your limit and force settings properly and to make sure your door passes the safety reversal test. 

Here are some more issues and solutions regarding the error code 4-2 on Liftmaster

  • Broken torsion spring: replace broken torsion spring 
  • Worn/broken rollers or hinges: lubricate, repair, or replace rollers
  • Worn bearing in bearing plate: lubricate or replace bearing plates
  • Up limit set too far and hit stop bolt: check and install belt cap. Reprogram travel and force adjustments 
  • Loose travel module assembly: check mounting tab/screw to make sure a snug fit between module and motor/bracket 
  • Loose travel module drive gear (RJO): remove the cover, locate gear that turns the travel module, tighten set screws
  • Loose travel module wires: check connection points to ensure a snug fit. Repair or replace the wire harness

Contact your Near Dealer 

If you are inexperienced and do not know how to segregate the defective components, it is always better to take the help of your nearest dealer. To locate dealers near you, visit this page

Contact Liftmaster 

Finally, the last thing you can do about the Liftmaster error 4-2 is to get in touch with the Liftmaster’s customer support. So, visit here and connect to the customer service. 

Final words: Since too much force on the garage door will interfere with the proper operation of the safety reversal system, never increase the force beyond the minimum amount needed to close the door. 

Besides, never use adjustments to compensate for a binding or sticking garage door and the safety reversal system should be tested every month. We hope, the above article has helped you to fix the Liftmaster error code 4-2 issue.  

Frequently asked question

What does an error code 4-2 mean for a Liftmaster garage door opener?

You might face error code 4-2 when the operator detects too much force being used when trying to open the garage door. 

How do I fix my liftmaster error code 4-2?

You fix the error code 4-2 by fixing the door alignment, checking for any obstruction, and by checking the garage door balance. 

Why does my Liftmaster open but not close?

The issue is usually either due to a blocked path between the sensors, loose wires at the sensors, dirty safety eyes, bad sensors, or a bad motor control board. 

Liftmaster Error Codes:
Liftmaster Error Code 4-1 [How to Fix]
Liftmaster Error Code 4-3 [How to Fix]
Liftmaster Error Code 4-6 [How to Fix]
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