CPU Fan in Flex-6500 is down. Anyone please who can send a spare one?

  • 2
  • Problem
  • Updated 1 week ago
I've asked already Eric K2CB if he has from his orders, but he sold all.
Since I'm at Cyprus island, it still seems easier to get fan to the radio, rather then radio out to the dealer.
Replacement is not a problem, but need the fan. I put back life to mine by drop of oil, but not for long time unfortunately. If you have spare one - please contact to my 5b4alj@gmail.com email address. 73! Mike 5B4ALJ.
Photo of Mike


  • 1 Post
  • 0 Reply Likes

Posted 1 week ago

  • 2
Photo of Scott N8UMW

Scott N8UMW

  • 133 Posts
  • 37 Reply Likes
It would be great if he would do another bulk order. I only got two and they are already failing. Not going to spend money every six months to a year to send the radio back to Flex.
Photo of Bill -VA3WTB

Bill -VA3WTB

  • 2965 Posts
  • 644 Reply Likes
If there was a safe way to seperate the heat sink that is on now, we could perchase the new ones from Flex and install them. Flex has replacements for the old ones.
Photo of Scott N8UMW

Scott N8UMW

  • 133 Posts
  • 37 Reply Likes
The fans are screwed on to the heatsink. They can be removed without separating the heatsink from the chip. One of the heatsink/ fan assemblies Flex installed while my radio was still under warranty was not solidly attached and lifted with no real effort. When I replaced the rear one six months later, the front one I installed was still solidly stuck on the chip. With that in mind, I can't justify close to two hundred bucks every year or less to keep sending it in. Thought about one of the new ones and saw all the issues with heatsinks falling off.
Photo of Bill NE1B

Bill NE1B

  • 17 Posts
  • 4 Reply Likes
My 6300 fans failed while in Warranty and sent in to Flex.  A year later one fan failed again.  Found a source and replaced both here.  Now another year has passed and I suspect another failure.
I bought a 6500 last year hearing they had no fan problems.  So far, in 7x24 operation, no failure.  It appears to have larger fans.
Photo of Bob Craig, K8RC

Bob Craig, K8RC

  • 233 Posts
  • 90 Reply Likes
Only slightly off topic:

Before I retired from 39 years service as the transmitter supervisor of a local TV station, I was privileged to install a new transmitter. They're expensive and last a really long time so they're only replaced every few decades. The transmitter I installed was only the 4th since the station signed on in 1949.

The new digital transmitter is all solid state and VERY reliable compared to its hollow state predecessors. The only failures in the 24/7 operation from when she went on the air in June, 2009 until I retired in July 2015 were 2 CPU fans! (The same fan failing twice!)

Fortunately, all of the primary functions of that transmitter are hard-wired logic and the computer can be removed and the fan replaced while the transmitter is still on the air.

Please pardon an old guy telling stories. It's what we do.


P.S. For more "stories" on my broadcast transmitters, visit my website: http://k8rc.com/12/index.html