How To Fix Liftmaster error code 4-1?

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Liftmaster error code 4-1

Garage doors are becoming more advanced and automated as all the objects in the world are.

You no longer have to put extra effort into closing or opening unoiled garage doors. 

These days, you have options for smart additions to garage doors. You can employ devices like Liftmaster that are really popular.

They help you automate many processes of lifting heavy doors.

The device is so smart that it can also let you know if something is going wrong with it. This is done through the error codes.

In this article, we are discussing Liftmaster error code 4-1.

The Liftmaster error code 4-1 shows up when there is an excessive force detected during closing. The error code reads, “Excessive closing force detected”. This will also not let the garage door close properly. You can also notice this error as the up arrow flashes 4 times followed by one flash on the down arrow.

We will discuss how to solve the error code on the device along with the reasons that could be behind the error code.


How to solve the Liftmaster error code 4-1?


Liftmaster manufactures smart Garage door openers. They operate with heavy machinery and any error code on them should be taken care of immediately to avoid any safety hazards.

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When there is an obstruction with the garage door due to excessive closing force, you will see the error code 4-1. Let us see what can be done to get rid of this error code.

Fix 1: Take the measurements on the door to check for damage

The device can show this error code when the garage door has been damaged or bent due to any external force that hit it.

To make sure that this is the problem, take the measurements on the garage door. Also, check for any visible damage on the door.

If you find any discrepancies, you will need to contact a technician to straighten out the damage on the door.


Fix 2: Check if there is any obstruction on the garage door

Liftmaster will need to apply excessive force to close the door if there is something stuck in the door machinery.

Sometimes when there are objects like pebbles or ropes that are small enough to miss your eye but big enough to get stuck in the door machinery, get stuck, the door will not close.

When you see this error code, check for any visible stuck objects in the door machinery and remove them.


Fix 3: Adjust the limits on the garage door opener

There are force and travel limits that can be changed according to convenience and they play a huge role in the functioning of the garage door opener.

Do not increase the force limit more than the minimum amount that is required to lift the door that you have installed.

Check the notifications provided to you at the time of installation and then make sure that the limits are adjusted according to the limits.


Fix 4: Safety reversal test is not performed

There are certain important tests you need to perform on the device to make sure that there is no safety hazard.

When you make any adjustments to the device and fail to conduct a safety reversal test after the adjustment, the device might refuse to function.

This is a safety adjustment and you should conduct a safety reversal test immediately if you suspect that it could be the issue.


Fix 5: Contact a technician

The garage door opener is a heavy machinery operator. It can quickly turn into a big problem if the issues are not solved in the right manner.

If the issues on the device indicate major issues with the garage door installation, do not ignore them.

Immediately contact a technician to help you with the device and the connecting door.


To conclude


The garage door is not something that you should take lightly when it is facing issues. With the help of smart garage door devices like Liftmaster, you can be notified of the troubles with the door on time.

The error code 4-1 on Liftmaster indictes that there is excessive force detected on the closing of the garage door.

We have mentioned the scenarios in which this issue could take place and also suggested appropriate solutions. However, if you are in doubt about solving this on your own, you should contact a technician and let them handle it for you.

We hope that this effort was helpful. Keep following for more technical advice.


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