K3: Noisy Fans

[Barry Simpson]

My fans have always been noisy. I can tell immediately when they come on at the slowest speed with my headphones on. The noise sounds like rough bearings but as they get faster both fans get noisier. They definitely are not whisper quiet by any stretch of the imagination.

 

I just took the top cover off the K3 and there are no wires catching the fan blades. The fan with the noisy bearings is the one on the right next to the antenna sockets. But both fans are noisier the faster they run and they drown out my computer fan.

 

I guess I need to ask Elecraft for replacement fans.

 

Barry Simpson  VK2BJ  K3 # 1397

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[M0XDF]

double check the fan wires that run between the fan casing and the back panel - it might not be possible to see those from the top and you would need to remove the fans from the back panel.

But you might be able to tell by slowly rotating the fan manually, if it was a wire, you might be able to feel/hear it as the blade goes past. You would also be able to feel the bearings if they are that noisy.

73 de M0XDF, K3 #174 

-- 
A society grows great when old men plant trees whose shade
they know they shall never sit in. -Greek proverb

On 10 Dec 2008, at 09:33, Barry Simpson wrote:

My fans have always been noisy. I can tell immediately when they come on at the slowest speed with my headphones on. The noise sounds like rough bearings but as they get faster both fans get noisier. They definitely are not whisper quiet by any stretch of the imagination.

 

I just took the top cover off the K3 and there are no wires catching the fan blades. The fan with the noisy bearings is the one on the right next to the antenna sockets. But both fans are noisier the faster they run and they drown out my computer fan.

 

I guess I need to ask Elecraft for replacement fans.

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[Tim Heasman]

Hi All,

 

The fan noise does not get louder than my tinitus until on speed 4, and then I can only hear air noise.

 

73

 

Tim

 

gm4lmh # 1245

----- Original Message -----

From: [hidden email]

To: [hidden email]

Sent: Wednesday, December 10, 2008 9:33 AM

Subject: [Elecraft] K3: Noisy Fans

My fans have always been noisy. I can tell immediately when they come on at the slowest speed with my headphones on. The noise sounds like rough bearings but as they get faster both fans get noisier. They definitely are not whisper quiet by any stretch of the imagination.

 

I just took the top cover off the K3 and there are no wires catching the fan blades. The fan with the noisy bearings is the one on the right next to the antenna sockets. But both fans are noisier the faster they run and they drown out my computer fan.

 

I guess I need to ask Elecraft for replacement fans.

 

Barry Simpson  VK2BJ  K3 # 1397

---

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