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Old 11-13-2004, 03:05 PM   #1
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Noisy cooling fans

Anybody have a good solution for putting an end to my noisy cooling fans in my Coralife Aqualight hood?
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Old 11-13-2004, 03:25 PM   #2
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From what I know about fans, not that much, noise is caused by the tip velocity of the blades. If you can slow them down the fan will run quieter. Ideally you would get a larger fan that spun slower for the queitest fan with the most air flow.
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Old 11-13-2004, 03:36 PM   #3
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Thanks for the reply!
The noise of the fans beating the into submission like that of a helicopter is not the noise I'm experiencing! My noise is a grinding,vibrating shut the light off the sound is killing me kind of noise
Perhaps a more quality fan like the five in my computer case is needed.
A safe lubrication method may be an option as well.
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Old 11-13-2004, 04:01 PM   #4
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Fan is bad. Need to replace.
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Old 11-13-2004, 07:20 PM   #5
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It's brand new
Been running it for about 20 hours or so
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Old 11-13-2004, 07:44 PM   #6
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Ok, didn't know that, if you can get it out check to see if the blades are turning smoothly, and "in round", by that I mean they are not wobbling, your noise could be just the fan blade being off a little and/or hitting the casing. HTH
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Old 11-14-2004, 03:18 PM   #7
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That's cool, the fan seems to be true, think I'll be ok adding a drop of vegetable oil or something to it? Don't want to contaminate the tank or anything
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Old 11-14-2004, 04:16 PM   #8
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Look at the blades, make sure there are no "chads" hanging off the end. Or spin it by hand and see if anything is rubbing or hitting. Veg. oil may work as a temp fix but they have sealed bearings so replacement is in order.
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