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164 posts

Master Geek


#228660 16-Jan-2018 15:43
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I have a heat-pump in my master bedroom that is just over 3 years old and its started making clicking noises in the early hours of the morning.

 

And this is the crazy thing it only happens in the early hours of the morning always between 4am and 6am.

 

I had the heat pump installer around to look at it and he couldn't replicated the fault (because it never happens during the day time!)

 

I suggested he spend the night :-)

 

I thought I would throw it out onto Geekzone if anyone has had this issue before or works in the industry and is a bit more clued up than my installer that can help lead to speedy resolution?

 

Fijitsu heat pump still inside the 6 year warranty.

 

Recording below taken at about 5:30 am:

 

https://www.dropbox.com/s/7xjcpdigsjgvx6x/AirConFault.mp4?dl=0

 

Cheers!


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1751 posts

Uber Geek


  #1940012 16-Jan-2018 17:18
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Looks like the directional vent thing moving is making the noise. No idea why at that time of the night. Change in humidity?

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  #1940052 16-Jan-2018 18:03
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Who ya gonna call......!






 
 
 
 


539 posts

Ultimate Geek


  #1940082 16-Jan-2018 19:02
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is it a daikin?

 

my bad just read it was a fujitsu, i would suggest to make sure that its not on ripple control or any form of control power,

 

because some heat pumps open and close the vents when power has been restored.




164 posts

Master Geek


  #1940089 16-Jan-2018 19:20
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Its so frikken strange because the technician pulled the cover off had a good look around and found nothing.

 

I can run it all day and no problems but come 4am it starts doing this crazy sound....


1751 posts

Uber Geek


  #1941793 18-Jan-2018 08:44
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You haven't got something on the timer set for four am? You could try setting it to not oscillate.

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Uber Geek


  #1941797 18-Jan-2018 08:58
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I assume that you've got out of bed when it's making the clicking noise and turned the light on and tried to identify where on/in the heatpump the sound is coming from? That would narrow things down a bit.




164 posts

Master Geek


  #1941821 18-Jan-2018 09:20
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Yeah got up multiple times and used a flashlight to look inside to see if I can see anything flapping around. The sound seems to be coming from inside the unit maybe behind the fan.

 

The technician thought that it might be the compressor outside with the noise travelling through the copper pipe. I am not so convinced.

 

I tried a number of different settings. It happened again at around 5am this morning.

 

It's crazy what is it about that period of time in the morning that makes it do this?


 
 
 
 


Banana?
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  #1941824 18-Jan-2018 09:23
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Do you have it running when it does this, or does it wake up and do it itself?


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  #1941856 18-Jan-2018 09:46
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sensitive to the ripple control sent down the power front he power company?

 

(Sorry, cant access the link from work).

 

We had a fan running overnight at my mother's house and around that time there were weird pulsing harmonic sounds from the fan.    I put it down to that (maybe) but I'm just guessing. Could be the problem here?





Check out my LPFM Radio Station at www.thecheese.co.nz cool




164 posts

Master Geek


  #1941873 18-Jan-2018 10:14
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My house is double glazed and is hot at night I just set it at 19-20 degrees and go to sleep. The ripple idea is interesting one.

 

I am going to sleep in the guest room tonight which also has a heat pump and see if it suffers the same issue.

 

 


Banana?
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  #1941876 18-Jan-2018 10:17
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I wonder if it is something defrosting (therefore, ice cracking is what you hear)?


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  #1941881 18-Jan-2018 10:32
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Vermin getting in to the wall behind / back of the heatpump unit by tracking along holes cut in nogs / studs for pipes and cables?

 

A mouse can crawl through small holes and make a hell of a noise in the wee hours.


1588 posts

Uber Geek


  #1943609 19-Jan-2018 15:51
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Set the timer on the remote to turn off the heat pump after you've gone to sleep. I've heard heat pumps making that clicking sound when they're thinking of getting back in to action.

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Uber Geek


  #1943615 19-Jan-2018 15:59
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I used to have a Hitachi aircon that would self clean on a timer each day and made clicking noises while doing so. 
I think it would be obvious if it was this though as you could see the brushes under the front cover rotating and the filters moving up and down,


Devastation by stupidity
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  #1943626 19-Jan-2018 16:18
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+1 for one of the more intriguing headings I've seen recently.

 

 





I don't think there is ever a bad time to talk about how absurd war is, how old men make decisions and young people die. - George Clooney
 


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