This auction is for the brochure on how to replace your Sigma controller and the Siemens VFD on your Kaeser Compressor. When the Siemens VFD fails, the cost to replace it can make the compressor repair too expensive. This plan shows you what you need and where to get parts to replace the VFD and the Sigma Controller.

Upon completing purchase, we will send you the brochure digitally or by mail.