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 [WTA] Grundfos Water Pump, CH-PT or CH-PC

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enriquelee
post Jul 21 2013, 12:51 AM

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My Grundfos water pump at roof top is very noisy. Model is CM 5-4 PC. Anyone having the same problem?
enriquelee
post Jul 26 2013, 09:27 AM

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QUOTE(JinXXX @ Jul 24 2013, 09:25 PM)
got put the dampening "mat" under the pump ??
*
Will check whether there is a mat or not.
But the loud sound is not knocking sound, it is more like a low motor roaring sound.
enriquelee
post Jul 28 2013, 10:43 PM

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QUOTE(JinXXX @ Jul 26 2013, 08:36 PM)
check some of the vids zean shared, then u can see the difference between with mat and without mat..

low motor humming sound ? how "loud" is it ?
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The pump at 1st floor roof top. (Middle of the whole house), while i am at Gf back yard also can hear the motor sound. Abnormal, right?
enriquelee
post Aug 31 2013, 02:47 PM

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QUOTE(enriquelee @ Jul 28 2013, 10:43 PM)
The pump at 1st floor roof top. (Middle of the whole house), while i am at Gf back yard also can hear the motor sound. Abnormal, right?
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Anybody have any idea?
enriquelee
post Aug 31 2013, 10:18 PM

Don't ask for more, ask for COKE
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QUOTE(ozak @ Aug 31 2013, 06:19 PM)
You need somebody inspect the pump and is the installation method correct or not. Before further to improve the noise.

I think  zheilwane did highlight the noise problem with the wrong installation. Try check it back.
*
Ok, thanks. Will try to browse back.
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