• Registered: 2009-03-18
  • Posts: 8

Topic: Sequoia 512. Error. Cooling fan failure

Hello. I have a problem with Acuson Sequoia 512, sometimes it show a error "Cooling fan failure". After cliking 'OK', device work without troubles. But this repeating
after 1-2 weeks. Please tell me, in what is problem, and what to
do for it disapiring. Will be wait an answer.

  • Todd
  • Administrator
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  • From: Oceanside, CA
  • Registered: 2009-02-05
  • Posts: 297

Re: Sequoia 512. Error. Cooling fan failure

The Sequoia has a fan tray at the bottom of the system that uses 4 large fans to cool the system.

It sounds like the fan tray power supply is causing your "cooling fan failure" error. Since it's intermittent, your best option would be to replace the entire fan tray. Or if you're feeling adventurous, you could pull it out and check for any damage.

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  • Registered: 2009-03-18
  • Posts: 8

Re: Sequoia 512. Error. Cooling fan failure

Can I blow fans by air compressor without removing its from system?
If I must remove fan from system than can you tell me: how to do this operation?

Thanks,

  • Registered: 2009-03-18
  • Posts: 8

Re: Sequoia 512. Error. Cooling fan failure

Is it necessary to remove side panels to pull out fan tray?

  • Todd
  • Administrator
  • Offline
  • From: Oceanside, CA
  • Registered: 2009-02-05
  • Posts: 297

Re: Sequoia 512. Error. Cooling fan failure

Blowing the fans out with an air compressor would probably shoot the dust up into your system. Pulling the tray out is relatively simple.

When facing the system, the side panel on the right side needs to be removed (just the plastic one). There is a screw at the back of the side panel, that's hidden behind a filter which can be removed. Take the screw out, and pull the side panel away from the ultrasound. it's held on by clips that socket into spaces in the machine chassis. DO NOT REMOVE THE METAL PANEL THAT IS BEHIND THE PLASTIC PANEL. If your system does not have "Third Party Service" the system will boot into the Service UI on startup, and the fans will kick on high. You will then need to call Siemens to unlock your system.

The fan tray CAN be removed without any issues though, so make sure its ONLY the fan tray you're taking out: At the bottom of the system is the fan tray. It's held on by 3 or 4 philips head screws, and several power connections. They should all be labeled, most of which only fit in specific slots. The tray is semi-heavy, maybe 20 pounds... it's held together by screws along the outside of the tray itself, 4 or 5 screws.

Below is a picture for your reference.
http://i44.tinypic.com/2z8drg9.jpg

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Todd's Website

  • Registered: 2009-03-18
  • Posts: 8

Re: Sequoia 512. Error. Cooling fan failure

Thanks for full answer!