Why Does My Office Chair Keep Going Down? [3 Quick Fixes] 2022

Office chairs are designed to be comfortable and supportive, but sometimes they can start to go down. This can make sitting in the chair uncomfortable and cause back pain. 

Office chairs typically have a gas lift mechanism that allows you to adjust the height of the chair. Over time, this mechanism can become worn down, causing the chair to slowly sink.

In this article, we will discuss some reasons why your office chair might be going down, as well as some solutions to the problem. Also, we will provide you with a few tips on how to prevent your chair from sinking in the future. So, let’s get started!

Why Does My Office Chair Keep Going Down?

Why Does My Office Chair Keep Going Down

A chair that hangs does not necessarily mean the chair is broken in its entirety. The reason why this happens is simple to understand.

The office chair’s lift has stopped working. The cylinder is the part of an office chair that connects the seat to the base. And that is what it refers to when we say that we can raise and lower the chair. The chair cylinder is filled with nitrogen gas.

The nitrogen gas within the cylinder switches chambers whenever someone pulls the chair lever, causing the cylinder to move up and down.

The cylinder is pushing down on the chair. With time and repeated usage of your chair, the seal in the cylinder starts to deteriorate and leak. When this happens, the nitrogen gas starts to escape and the chair slowly goes down.

How To Fix A Chair That Keeps Going Down?


This is a quick fix method. It will not be a permanent solution, but it can help to stop your chair from going down for the time being. You will need a hose clamp and some duct tape for this method.

Step 1: Take off the plastic cover of the cylinder. To uncover the metallic cylinder, slide it up or down.

Step 2: Place the hose clamp around the cylinder. Make sure that the clamp is tight enough so that it does not come off, but not too tight that it damages the cylinder.

Step 3: Cover the hose clamp with duct tape. This will help to keep the hose clamp in place and prevent it from scratching the cylinder.

Step 4: Put the plastic cover back on the cylinder.


It is also possible to use a PVC pipe to fix a chair that keeps going down. This method is a bit more involved than the hose clamp method, but it will provide a more permanent solution.

  • Measure the gas cylinder first. Most office chairs have extendable cylinder covers made of plastic. Remove the metal cylinder’s plastic casing.
  • To determine the cylinder’s diameter, pass a ruler across it. For more accurate measurements, albeit not required, you may also determine the diameter using the circumference. Use calipers as an alternative.
  • Choose a PVC pipe that will fit around the pneumatic cylinder of the chair. It should be the same size as the cylinder’s diameter or just a little bigger. Purchase a length that, when the chair is at the required height, extends at least from the base to the seat. Any portion of the pipe will do. Although you can simply slice it yourself, some people like it in smaller pieces.
  • Use a saw to cut through one side of the pipe’s length. To prevent breathing in unpleasant materials while cutting PVC, wear a respirator or mask.
  • If you don’t have any cutting equipment, take off the casters from your chair and put the intact pipe on. The wheelbase may usually be detached with just a screwdriver.
  • To uncover the cylinder, raise or lower the plastic case. By pressing the PVC pipe’s cut side up against the gas cylinder, it will be secured around it.


This method is more expensive, but it is the most effective way to fix a chair that keeps sinking. You will need to replace the gas cylinder in your office chair.

Step 1: Remove the old gas cylinder from your chair. To do this, first, remove the plastic cover from the cylinder. Then, unscrew the cylinder from the base of the chair.

Step 2: Install the new gas cylinder in the chair by screwing it into the base.

Step 3: Put the plastic cover back on the cylinder.

Your chair should now be working properly. If it is still sinking, you may need to adjust the tension on the chair. This can usually be done by turning a knob underneath the seat.

Frequently Asked Questions

How often should I replace my office chair gas cylinder?

It is generally recommended to replace your office chair gas cylinder every 3-5 years. However, this will depend on how often you use your chair and the conditions in which it is stored.

What is the best office chair gas cylinder?

There is no one “best” office chair gas cylinder. The best cylinder for your chair will depend on the make and model of your chair. You can usually find the correct cylinder by searching for your chair model online.

What is the warranty on office chair gas cylinders?

Most office chair gas cylinders come with a 1-year warranty. However, some manufacturers offer extended warranties for their products.


An office chair that keeps sinking can be a frustrating problem. But, it is usually an easy issue to fix. In most cases, you will just need to adjust the tension on the chair or replace the gas cylinder. If your chair is still sinking, you may need to replace the gas cylinder with a new one.

In the guide, we have shared how to fix an office chair that keeps sinking. We hope you found this guide helpful. If you have any questions, please feel free to ask in the comments below. We will try our best to help you out with your confusion. Thank you for reading!

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