How to replace the arm on an aeron chair

Written by kelli shaw
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How to replace the arm on an aeron chair
Check with your nearest Herman Miller dealer for new parts for your Aeron office chair. (chair drawing # 7 image by Stephen Jacoby from

Herman Miller, a leading worldwide office furniture company, debuted the Aeron ergonomic office chair years ago. It was applauded for its design style, and it boasted a fit for every body. Its environmentally friendly design (it is 94 per cent recyclable) has earned it a place in the Museum of Modern Art's permanent collection. Aeron chairs are sturdy and worth their expensive price tag if you sit for long periods of time. The chairs sometimes require repairs, such as replacing the arms. This can be completed quickly and easily with a few simple tools.

Skill level:

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Things you need

  • Aeron chair
  • Replacement parts
  • Screwdrivers

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  1. 1

    Determine if your Aeron chair is still covered under the Herman Miller warranty by checking the sticker underneath the seat of the chair for the manufacture date. Chairs made prior to 1998 came with a 10-year warranty; chairs made in 1999 and later came with a 12-year warranty. If your chair is still covered under the warranty, you can obtain your replacement parts for no charge from the company. Call your local Herman Miller office furniture dealer (or look online if you do not know where the closest dealer is) and explain that you need a replacement arm. If your chair is covered, the parts and labour will be provided at no charge.

  2. 2

    Visit the local dealer to determine what parts are needed to replace the arm on your chair. This is not mandatory, but it is useful, as the dealerships often have a chair repair expert on staff who can help determine what parts are necessary for the repair. This is especially valuable if the warranty has expired and you will have to pay for new parts.

  3. 3

    Determine the parts you need for the repair and place the order. If you are having to buy the parts, compare prices online so you can be sure you are purchasing the parts at the best cost. Keep in mind that you will most likely have to pay shipping fees when you buy the parts online.

  4. 4

    Place your chair in a well-lit, open area, on a table or on saw horses so that you won't have to bend down to work on the chair. Lay out the replacement parts and begin by unscrewing the pieces you are replacing, setting them aside as you remove them. Work on one side at a time to keep the parts from being mixed up. Install the replacement arm pieces, hand tightening with a screwdriver. Do not overtighten.

  5. 5

    Continue with the other side if necessary. Once complete, remove the chair from the table and test the arms to be certain they are installed properly and work satisfactorily.

Tips and warnings

  • Herman Miller chairs have a lot of small parts, and the company also sells kits for specific areas of repair. Finding out exactly what parts you need will help you avoid paying for unnecessary parts.

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