FLEX-6400M - fan noise?

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  • Updated 10 months ago
I took delivery of a FLEX-6400M this evening and am hearing a loud rattling sound when the radio is powered on.  The rattling noise apparently is fan blades that are brushing up against something inside the chassis.  I contacted the Help Desk after hours this evening but do not expect to hear from anyone until tomorrow morning.  Meanwhile, I would appreciate any related thoughts.  Thank you!
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W8QB

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Posted 10 months ago

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Wendell - N4VLK

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Sorry to hear that Doug, my 6600M is extremely quiet.  Good Luck!
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W8QB

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Hi Wendell.  To clarify, this is not a "my fan is too loud" issue.  Rather, the fan blades apparently are brushing up against something inside the chassis.
(Edited)
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Matt (K0KB)

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Bummer, Doug! It must have taken a hell of a jostle during shipping. If you havent dealt with flex service before you will at least be pleased to hear that they are really top tier.
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W8QB

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The radio was picked up in Austin yesterday evening and UPS delivered a mere 26 hours later.  It is hard to understand how it could have been jostled during the brief trip from Austin to my location in the Dallas area.
(Edited)
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Alan WA4SCA

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Years ago, my VU5K had a similar rattle on arrival.  After I cracked it open, I found that whoever assembled it had simple wadded the power cord for the main cooling fan into a ball and shoved it behind a ribbon cable.  It had vibrated lose and was being hit by the fan blades.  Fortunately it did not get tangled.  Fixing it was trivial by adding a cable tie.  Been fine ever since.
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W8QB

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I strongly suspect this is something like what you experienced, but am hesitant to look inside, because "Opening the unit may void the manufacturer's warranty".
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Tim - W4TME, Customer Experience Manager

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It will not.  The parts you can't open are secured with a security label.
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W8QB

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Thanks Tim.  As noted in our separate correspondence, the rattling sound was caused by a cat 6 cable that was pressing directly against the fan blades.  
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Marc Lalonde

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interesting i not see yet any security label label ?
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Tim - W4TME, Customer Experience Manager

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It is a different label than what was in the 1st generation radios.
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FRED W9TB

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I'll bet they tell you to take the cover off and look at it before you send it back.
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David Decoons wo2x, Elmer

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The UPS gorillas srike again! Need to be renamed Oops!