Magnum HOT noisey?

hyunelan2

Large Fish
Jun 1, 2005
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Near Chicago, IL
#3
I have 2 HOT magnums, and one does this every once in a while... the other one never does. I did notice than when I had it hooked to a biowheel, the noise was less than it is when it is running stand-alone. I agree it sounds like something is vibrating, but I never investigated it enough to figure out what it is. I'll be keeping an eye on this thread.
 

Jan 30, 2006
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#4
Interesting

Hmm, its definately not clogged, casue it will do this RIGHT after I clean it completely. What kind of moving parts does this thing have? Maybe the impeller is off balance, can I buy a new one?
 

CAPSLOCK

Elite Fish
Jul 19, 2004
3,682
33
48
39
Cape Cod
#5
Did you line up the bottom part right? I have a Magnum 350, and it can make some pretty horrendous noises if you don't get the stuff lined up right on the bottom after you clean it.
 

hyunelan2

Large Fish
Jun 1, 2005
684
1
0
45
Near Chicago, IL
#6
^^^ That's one of the things I suspected, but since I've had it apart and back together quite a few times (for cleaning, media change, etc) and I'm sure I haven't misaligned it every time. Is there something else that might be able to become lose, or possibly the motor unit itself wearing out?

wgf97079 - how old is your magnum? (and yes, you can get new impellers/motors for them, check bigals).
 

Oct 17, 2003
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Hampton, Virginia
www.freewebs.com
#7
While I am sorry I do not have a solution for you I wanted to chime in and say that I have the exact same problem. It occurs after I clean it and is currently driving me NUTS! What sort of media do you use in it? I replaced the carbon with the ceramic bio max cylinders. I have suspected that they vibrate if they are not packed tight enough and cause the noise.
 

Nov 10, 2009
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#8
Simple, Just use cotton swab and clean the "seat" where the orange gasket sits nested in the lid,often carbon and debris will prohibit a proper seal,at leas to my trials, I have two hot 350's on my 100 gal. octo. and they used too do the same thing,try that and get back to me.