How Can You Repair an MKS 1179A Mass Flow Controller?

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The discussion centers on the challenges of repairing an MKS Instruments 1179A Mass Flow Controller, particularly the difficulty in sourcing replacement parts. The user has disassembled the device and is seeking information about a specific component that includes a small stainless steel capillary tube and a ribbon cable with three wires. The device is out of warranty, and the user expresses frustration over the apparent lack of available repair parts, suggesting that MKS may prioritize servicing their own products to drive profit. There is a call for insights from others who have experience with repairing this model, highlighting a broader concern about the accessibility of replacement parts for such specialized equipment.
Chris Haskin
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Would love to talk to anyonw that is familiar with MKS instruments 1179A Mass Flow controllers. I have taken apart a MKS mass flow controller and am trying to fix it but I am not sure where to get replacement parts, or even what some of the parts do.Most specifically is a small block on top of the main control block that has a very small diameter stainless stell capillary tube and an electronic ribbon with 3 wires in it. It is out of warranty so all I know is that it doesn't work and I would like it to. But this is really more of a learning experience than anything so that I can see how these controllers work. It mainly looks like the company would like to work on their own products and that there is not a lot of replacement parts available as far as I can see. Would appreciate any help from someone who has done this before.
 
I am having a hard time finding any repair parts for a MKS 1179A mass fow controller. I think that the company is trying to make money by not selling repair parts. Has anybody else had the same experience?
 

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