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Fan B failure on ifd 440

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Rmurphy5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rmurphy5 Quote  Post ReplyReply Direct Link To This Post Topic: Fan B failure on ifd 440
    Posted: 08 Jul 2020 at 1:42pm
My unit keeps saying Fan Failure and it seems it is fan B - is there any fix for this as the unit runs fine and when I upgraded to 10.2.4.1 the fan failure was not present having been intermittent. 

Regards, 

Rohan
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Rmurphy5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rmurphy5 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jul 2020 at 3:28pm
Bumping this - Avi Steve - is this a common issues - we have three 440s and two of them have this fault coming up.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AviSteve Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jul 2020 at 4:52pm
I didn't quite understand this statement...

Originally posted by Rmurphy5 Rmurphy5 wrote:

... the unit runs fine and when I upgraded to 10.2.4.1 the fan failure was not present having been intermittent.

Nevertheless, the latest post says that you have two IFDs showing a fan failure?  I'm not aware of any common failures regarding fans being reported.  Sounds like a perfect job for tech support.  Have you contacted them?
Steve Lindsley
Avidyne Engineering
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rmurphy5 Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 2020 at 1:11pm
I will download the data and send it to them Steve - thanks for coming back - yes I wondered if it was something you had come across a lot?

Regards,

Rohan 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote piper18O Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jul 2020 at 11:22pm
Depending on how old your 440's are, there was a problem with the design, and there is a fix for that.  Hopefully your units are still under warranty.  I had that problem and had to send mine in.  Apparently there is a clearance issue for the fan.  That is why it fails.
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