Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


Shanemc

76 posts

Master Geek


#260054 8-Nov-2019 12:57
Send private message

Hi wonder if I could tap into some collective wisdom/experiences.

 

 

 

We have a panasonic multi-split heat pump system. With 3 high-wall head units.

 

It is coming up 4 years old.

 

 

 

Last summer one of the high wall units developed an intermittent rough electrical/humming sound. This sound would usual last about 30 seconds then stop. It would sometimes happen every 5 minutes, then sometimes not at all.

 

It does not seem to be related to the fan, and it is quiet a bit louder than the normal fan sound when on quiet.

 

The difference between this unit and the others is that it has a condensate pump.

 

 

 

The sound does not occur when the unit is used for heating, so we have not had it for the past 8 months.

 

But turned the unit onto cooling a similar thing happened. Although this time the sound continued after the unit was switched off. In fact started up about 15 minutes later. I had to turn the isolation switch off.

 

 

 

The unit is in my daughter bedroom and used at night. So it needs to be quiet.

 

 

 

We had a person have a look at it yesterday, but they did not seem that experienced and did not know what the problem was, and of course it wasn't making the noise.

 

 

 

I wonder if this sounds familiar to anyone else?

 

I suspect it is something to do with the condensate pump, but not sure how to test that or if they can be isolated.

 

 

 

Cheers for any help.

 

 

 

 


Create new topic
RunningMan
8213 posts

Uber Geek


  #2350248 8-Nov-2019 14:39
Send private message

Almost certainly the condensate pump from what you describe. It will only be needed on cooling, and will cycle on and off - more frequently the more humid it is.


 
 
 

GoodSync. Easily back up and sync your files with GoodSync. Simple and secure file backup and synchronisation software will ensure that your files are never lost (affiliate link).
  #2350872 9-Nov-2019 21:40
Send private message

Try pouring water into the drip tray (SLOWLY). This should trigger the condensate pump.

 

You should be able to pull a cover off to see the water tank in it.

 

Often they are loud while priming, then much quieter when properly primed. Feed a cup or so through it and it might quieten up if that's the issue.


Kickinbac
366 posts

Ultimate Geek


  #2351333 10-Nov-2019 23:36
Send private message

Condensate pumps only work in cooling mode as the cold indoor unit coil condenses the moisture out of humid air. Most have a float switch that turns the pump on as the reservoir fills up with condensate. There are some that work on a temperature sensors. I’ve always had a rule not to use condensate pumps in residential installs because they always make noise, especially annoying at night when its hot and want to sleep. This is why most installations of hi-wall units are on exterior walls so the refrigerant pipes and drain get to outside easily. Only way to solve it is to change the drain to gravity drain but may not be possible in your situation.

Create new topic





News and reviews »

One New Zealand Extends 3G Switch-off Date
Posted 11-Apr-2024 08:56


Amazon Echo Hub Review
Posted 10-Apr-2024 18:57


Epson Launches New Versatile A4 Desktop Scanners
Posted 10-Apr-2024 15:31


Motorola Mobility Launches New Android Phones in New Zealand
Posted 10-Apr-2024 14:59


Logitech G Unveils the PRO X 60 Gaming Keyboard
Posted 9-Apr-2024 19:01


Logitech Unveils Signature Slim Keyboard and Combo
Posted 9-Apr-2024 13:33


ExpressVPN Launches Aircove Go Portable Router With Built-in VPN
Posted 26-Mar-2024 21:25


Shure MoveMic Review
Posted 25-Mar-2024 12:47


reMarkable 2 Launches at JB Hi-Fi New Zealand
Posted 20-Mar-2024 08:36


Samsung Galaxy S24 Ultra review
Posted 19-Mar-2024 11:37


Google Nest Wifi Pro Review
Posted 16-Mar-2024 11:28


Samsung Galaxy A55 5G and Galaxy A35 5G
Posted 12-Mar-2024 12:41


Cricut EasyPress Mini Zen Blue launches at Spotlight New Zealand
Posted 12-Mar-2024 12:32


Logitech Introduces MX Brio Webcam
Posted 12-Mar-2024 12:24


HP Unveils Broadest Consumer Portfolio of AI-Enhanced Laptops
Posted 3-Mar-2024 18:09









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.