FLEX 6300 6500 6700 fans

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  • (Edited)
I’ve had a number of emails lately inquiring as to fan availability. If we can get enough takers, I’ll order another 100 fans.

Maybe if everyone committed to a minimum of 4 each, we could make it happen quickly. If you have interest, contact me directly at k2cb at comcast dot net. Give me an idea of how many you want. Min of two, preferably four. Hopefully I can get the mfg to honor the same pricing as last time.

I’ll report back as to whether or not we have enough participants to make another group buy work.

Eric
K2CB
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K2CB Eric Dobrowansky

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Posted 4 weeks ago

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Photo of Larry - W8LLL

Larry - W8LLL

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Are these case fans or CPU fans?
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K2CB Eric Dobrowansky

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CPU. Case fans are readily available from Mouser and DigiKey.
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Jerry WA9UKB

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I would be interested in fans also and 4. Units if they become available.
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Bill W2PKY

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Hello Eric-
I will take 4; I hope the QA will be a little better as one of the fans from the last batch lasted only 3 months.
Thanks;
Bill
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K2CB Eric Dobrowansky

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I would hope so. Unfortunately there really isn’t much choice as to suitable direct replacements.
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K4ny TOM

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I take 4 fans
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Dudley - WA5QPZ, Elmer

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Guys, becareful changing these, they are held on by industrial glue , that may make the fans difficult to remove and can damage the chip they are attached to, which can be very costly to replace. Just a word to the wise.

Dudley
WA5QPZ
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Bill W2PKY

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Dudley- the fan comes off the heat sink with removal of 4 screws. So removal of the heat sink is unnecessary.
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Larry - W8LLL

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I will take 4 also.
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K2CB Eric Dobrowansky

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Dudley,


These are exact fit replacements. They come supplied with the connector pre-attached, and the same heat sink.


However, almost everyone has been opting to simply unscrew the fan from the new fan/heat sink assembly, and simply swap the fan itself onto the pre-existing heat sink.


Most have reported the process to be quite simple. Swapping the heat sink, well that is another story. But for those not wanting to send their radio in, this is a quick, simple, and cost effective way of getting their radio back in service.


Eric
K2CB
(Edited)
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K2CB Eric Dobrowansky

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Guys, please be sure to email your requests direct, so I can be sure to add you to the list. It will also allow me to follow up once we are ready to proceed.

Thank you!
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WX7Y

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Hello Eric K2CB, 
What is your direct email address, I need to order 4 - FPGA / CPU  50MM fans I have the other fan's.

Please let me know at 
wx7y at arrl.net
(Edited)
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K2CB Eric Dobrowansky

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k2cb at comcast dot net
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Al / NN4ZZ

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Dudley,
I made some notes on my web page about both of the types of fans used in the 6300, 6500, & 6700. There are pics, connector options, error msgs, etc.

http://nn4zz.com/FLEX6700.htm#FANs_

Regards Al / NN4ZZ
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Keith Flint

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I will take 4 fans whenever you get them
W7ZAC  (QRZ OK)
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Jim Runge

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How much $$ were the fans last time?
Tnx,  Jim  K6JR
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Bill W2PKY

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I think $20
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David-N5PSM

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I will take 6 fans please I have a 6300 and a 6700
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K1UO - Larry

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Dave ...Per Eric's request above..  Send the fan requests direct to him at
k2cb at comcast dot net

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David-N5PSM

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I did that but he does not reply!!
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Andy - KU7T

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I must have missed a message or two but why do you all order fans? Is there an issue with the fans used in the radios and does Flex not honor warranty (assuming one still has warranty)? would it not mess up the warranty if one opens the radio themselves?

73
Andy
KU7T
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Steve - G8KNC

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Andy - the warranty would indeed cover the fans, and Flex will replace them should they fail within the warranty period.

People are ordering these fans as they either have had, or suspect they may have, a fan fail outside the warranty.

Both of mine have failed after about 2.5 years.

The advantage of these particular fans, which Eric is hopefully going to be able to source, is that they are the same as the originals and so you can unscrew the fan itself from the heat-sink and replace that part only.  The heat-sink is glued onto the component and is difficult to remove without danger of damage.

Hope that helps.

Steve
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Paul Lourd

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I second Andy's question. Do these fans reduce the ridiculously loud fan noise on the 6300?  My office is totally silent until the darn Flex gets turned on.  The only thing I don't like about Flex!
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Steve - G8KNC

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Maybe you're talking about a different issue?  My 6300 was virtually silent until the fans started to fail.  Had they not failed, I would certainly not have seen them as a problem.
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Mark K1LSB

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Paul,

I share your pain...the fans in my 6300 have always been noisy.

Bill,

Who said anything about running the radio without any fans?

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Jim Runge

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Just wait until you hear the fans in the new amplifier. It sounds like a hovercraft getting ready to launch.
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Larry - W8LLL

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If your not running an M model, consider placing your radio under a desk or some place similar to reduce the noise at your operating position, after all they are considered radio servers and they do not need to be in front of you to operate. I started operating remote in my house, all radio gear is in a back room while I operate in the den. 
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Paul Lourd

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I appreciate your attempt to help, but: Many of us replaced a radio with the flex. Meaning all the coax feeds, power, etc are in the same spot in the shack.  I also use a regular headset, which plugs into the front. Its a ton of work to do this another way. I have no desire to run "remote" when I am home. So much easier with a footswitch.  I thinking of a soundproof case, maybe just under the desk.  I  hate to keep harping on it, but the difference in noise level in the shack with it off vs on is dramatic, and has been that way since day one. I would not care on transmit, but just sitting on receive, its annoying. 73
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K2CB Eric Dobrowansky

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Everyone who replied directly is on the list. I apologize for not replying to everyone individually yet.  I have a ton of email to catch up on after being out of town for the holiday.

We have met the minimum requirement. I will be sending everyone an email with instructions later this week, once I have confirmation from the manufacturer.

Thanks,

Eric
K2CB

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K2CB Eric Dobrowansky

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I have received confirmation from the manufacturer that I will be able to obtain another production run.  Since they are being sourced from the factory in China, they are estimating a 10-12 week lead time. Once again, the fans will include the same oem connector preinstalled, and will be plug and play. Or should I say, screw and plug and play, if you do not wish to disturb the heatsink on the chips themselves.


Since I am doing this as a favor to the community, I am asking that everyone pre-pay at this time. I need to prepay when I place the order, as it is a special production run and non-returnable. I don't want to bankroll a few thousand dollars worth of fans, only to sit on them!  I'm sure you can understand! 


The process is simple - 


I will accept prepaid orders up until 12/3/18.  I will then place the order based on this quantity, rounded to the nearest lot size, as dictated by the manufacturer.  The remaining units will be available afterwards on a first-come first-served basis, similar to the last time around. Based on the estimated demand, I expect to have fewer than 20 fans left over.


The manufacturer has raised the price 10% from last year due to the new tariffs imposed on Chinese importations. However, due to the volume of interest, and the amount I will be purchasing this time around, I was able to negotiate with the manufacturer and lower the net increase to 5%. Therefore, the pricing is $21 per fanUS shipping will be a flat rate of $10 per shipment, up to 8 fans.  Over 8 fans, shipping will be quoted as necessary.  For orders outside the US, please send me your exact shipping address, and I will provide you with an exact shipping cost, for both standard and priority delivery.


Please send your PayPal pre-payment to hamcables@gmail.com .  I will confirm receipt within 24 hours, usually faster, depending on the time of day you send payment. I do work, so please keep that fact in mind.


I will keep everyone updated as to the progress, but please be patient. 10-12 weeks means we will not see the fans until at least the first week of February. Upon arrival from the manufacturer, I will get them out within a day or two.


If you have any questions or concerns, feel free to contact me directly at k2cb@comcast.net .


Thank you for your participation.


Eric
K2CB


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David-N5PSM

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I will send payment...... WAIT!!!!!   What about the PayPal fees.  I am paying for goods and they will charge you a fee ( IS THAT FIGURED IN?????? )
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K2CB Eric Dobrowansky

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Yes. It is figured in, but F&F is appreciated, when and where possible. Thank you to those who have done so.
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Lee, N2LC

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So far Eric, your 'customer service' is better than several vendors I've dealt with recently.

Thanks for all of your legwork on this. 

Lee, N2LC
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Ken - NM9P, Elmer

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Thanks, Eric, for providing this service.....

You have now earned the title of "official Flex Fan-boy!"

My fans on the 6500 are still running quietly and efficiently for over five years.  I hope it remains that way!

Ken - NM9P
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Al / NN4ZZ

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Hi Eric,
I'm still on my original fans ( 6700 and 5+ years )  but got 2 of them when you offered than initially.  Thanks again for providing them!  I've been lucky so far but glad to have them if/when they are needed. 

You are definitely providing a valuable service to those of us with the original 6300, 6500 and 6700 radios.  I'm sure it is a lot more effort than it seems and we really appreciate it.

Here are my notes on your fans with pictures, video, error codes and information on the case fans as well.  I hope they help answer some questions for others not as familiar with the fan replacement. 

http://www.nn4zz.com/FLEX6700.htm#FANs_

Al / NN4ZZ  
al (at) nn4zz (dot) com
6700 & SSDR-W  V 2.4.9
Win10


    
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Ernest - W4EG

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"Here are my notes on your fans with pictures, video, error codes and information on the case fans as well.  I hope they help answer some questions for others not as familiar with the fan replacement. "
http://www.nn4zz.com/FLEX6700.htm#FANs_
If I had those radios with those fan; that are in your notes above.
I hire a cleaning person!  
That is more than a little bit of dust that's "dirt"  on those fans pictured. 
No wonder the fans are failing.
A Flex-6700LE fan and loving it!
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Bill -VA3WTB

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I have put air filters in my 6500 case on each side, the filters are black and I can see dust collecting on them through the breathing holes. I change them out 2 times a year. Looking at the inside of the radio my fans look brand new.
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K2CB Eric Dobrowansky

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Hi Al,

Thank you for maintaining the page and posting the link. It is a great resource.


Eric
K2CB
(Edited)
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K2CB Eric Dobrowansky

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A quick and friendly reminder for those who have expressed interest but not yet acted -

I will be finalizing the factory order on Monday 12/3/18, so if you are still interested, please be sure to respond by Monday morning.

To all those that have already responded, thank you for helping to make this group purchase possible! The response so far has been great!


Eric
K2CB
 
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K2CB Eric Dobrowansky

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Good Evening, everyone.


The factory order has been finalized, paid for, and scheduled for production as of this evening. 

I expect to have approximately 20 additional fans available on a first come first served basis. If you expressed an interest earlier, and still desire to purchase fans, be sure to act soon, so as to not miss out this time around.

As stated earlier, the lead time is estimated to be 10-12 weeks, so the fans are not due in until early February. I will keep everyone updated as to the progress. Upon receipt from the manufacturer, I will get them turned around and out to everyone within a day or two, work schedule permitting.

Once again, thank you to everyone who participated to make this group buy possible.


Eric

K2CB



(Edited)
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Keith Flint

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Flex informed me that the last fan replacement they did used a newer type of fan, which required a heat sink replacement on the chips, so I do not think the fans you have will work with them. Please take my name/call off the list. Thanks. Keith W7ZAC
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John - K3MA

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Of course another alternative would have been to have asked Eric in private if he would be OK with you dropping off the list.  Then if he agrees all is fine.
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Keith Flint

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I cannot and will not buy anything that I know might not work, for my ham radios, or anything else
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Bill -VA3WTB

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Keith, of course no one wants to buy something that does not work for their radio. The fans that Eric is getting are now in many Flex radios and are tested to work just fine.
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Keith Flint

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Well, that is not what Flex support told me, so I will wait for them to comment on the fans, but thanks for the input.
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K2CB Eric Dobrowansky

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Well then, what exactly DID they tell you?

We still don’t know yet the actual manufacturer and part number of this supposed “new replacement fan assembly” FRS is utilizing. I’ve asked directly, but they refuse to answer. Thus my earlier request, for someone who has had this done, to please post a photo of the new part.

If your radio has not been back to Flex to have the fans changed, you can rest assured these fans are an exact match and fit. Right down to the heat sink and wiring harness. And if they did change your fans, who knows what you actually received. Some have reported receiving their radio back with the same style fan.

The fact is, the original fan was discontinued, but an exact replacement, from the same OEM, with slightly improved bearing technology, is what I have been providing. Thus the reason you can simply change the fan itself without disturbing the heatsink-to-chip bond. If you look at the original thread from last year, there is a post showing pictures of both the “old (original)” and “new (group purchase)” fan assemblies. Other than the color of the part number label, they look identical.

For the record, the last time around, FRS had Tim contact me to ask where I was getting the fans from. I wouldn’t be surprised if their “new” part is the same as my “replacement” part.......

Eric
K2CB
(Edited)
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David-N5PSM

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I have a 6700 and a 6300 and I do not know the fan revision.   Now I am concerned that the fans I have paid for are a waste of time.     ERIC Please clarify!
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David-N5PSM

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I will send pics from both radios.   As time allows
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K2CB Eric Dobrowansky

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That would be great. No rush. 

Thanks!
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Al / NN4ZZ

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Hi David,
If it’s okay I’ll post your pictures on my web page also. And add some notes to illustrate the differences between the original fans and the newer ones.

The original model (along with the replacement fans Eric supplies) should be fine for the long run. My original fans are still fine after 5 years and with 2 on hand I expect many more years.

http://nn4zz.com/FLEX6700.htm#FANs_

Regards, Al / NN4ZZ
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David-N5PSM

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I hope to post the 6300 tonight and the 6700 before monday.
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Al / NN4ZZ

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Hi David,
Did you get a chance to take the fan pics?  Not a rush but just checking to make sure I didn't miss them. 

Al / NN4ZZ 
al (at) nn4zz (dot) com
6700 & SSDR-W  V 2.4.9
Win10

  
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Keith Flint

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No, they only said that they are much better now.