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quebec

834 posts

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  #2845627 9-Jan-2022 14:03
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It's definitely the nanoe-G. Can someone else please confirm if they notice a difference with nanoe-G on & off? It's pretty noticeable but disappears when nanoe-G turned off from remote.


 
 
 

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insane
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  #2845640 9-Jan-2022 14:50
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Yes I have that on one of my Panasonic heatpumps, it's the ionizer. Panasonic heatpump in my last house did the same so I'm guessing it's normally.

My other Mitsubishi pump also has something similar but doesn't sound as loud.

boosacnoodle
943 posts

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  #3207543 18-Mar-2024 15:50
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Thanks for posting this. I also have the CS-E15PKR and noticed that noise recently. I've switched off Nanoe and the noise disappeared immediately. Put it back and the noise came back again. I will see about getting it serviced.

 

Did you happen to find a fix (other than turn it off)?




tweake
2219 posts

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  #3207547 18-Mar-2024 15:58
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boosacnoodle:

 

Thanks for posting this. I also have the CS-E15PKR and noticed that noise recently. I've switched off Nanoe and the noise disappeared immediately. Put it back and the noise came back again. I will see about getting it serviced.

 

Did you happen to find a fix (other than turn it off)?

 

 

simply leave it off. 

 

its basically a modified ionizer which generates ozone, which generates pollution (which research has proven). it actually gives me a sore throat from breathing it in, i have a few of them. so overall its just a gimmick that causes more problems than it solves. sadly since covid started there is a huge growth in this sort of crap. avoid "active cleaners". 


sir1963
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  #3207580 18-Mar-2024 17:52
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quebec: Anyone else have Panasonic heat pump. Mine had this annoying hissing nose when starting up and then the noise goes away when it’s running. Sounds like has moving. Hopefully not a leak otherwise all gas would have leaked by now isn’t it?
Have checked other brands at friends places no such sound. Also had a look at similar model running at someone’s place and couldn’t hear this sound. I can record it and upload if that helps.

 

 

 

I would say it is perfectly normal.

 

To me it sounds like they control the compressor by closing a valve and allowing it to "pump down" causing the compressor to stop when it detects "low gas" on the pressure switch

 

The hissing sound will be when the valve opens and the gas equalises around the system, making the "low gas" pressure switch to change state and allow the compressor to start up.

 

 

 

https://www.achrnews.com/articles/142973-understanding-low-pressure-controls-in-refrigeration-systems


boosacnoodle
943 posts

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  #3207613 18-Mar-2024 19:31
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No. It’s when Nanoe switches on and off. Both myself and OP can reproduce this easily and immediately using the remote to toggle it.

Goosey
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  #3207803 19-Mar-2024 07:05
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How old is the unit?

 

Do you get it serviced annually ?

 

Are you regularly cleaning the filters?

 

 

 

When switching on, are you going full blast or are you being diligent and going low fan, room-ish temp for a few minutes to get it "warmed" up. 

 

 




boosacnoodle
943 posts

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  #3208629 20-Mar-2024 15:21
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2017. Yes it’s regularly cleaned out. I seldom switch it off.

Kickinbac
412 posts

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  #3209438 22-Mar-2024 09:54
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Sometimes on a split system manufacturers specify a minimum pipe length, usually to stop gas noise. Usually about 2.5 metres minimum which is about a basic back to back install length. 

 

My mate has Panasonic heat pumps, about 4 years old. I house sat for them and the 2.5 kW unit in their bedroom was noisy. My mental note was never to buy a Panasonic. Its pipe length was about 3 metres.

 

 


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