Noise like this?
Not the same brand, but it was the noise that causes me sold off after a month and getting inverter aircond.
Inverter aircond still have noise but it wasn't constant, it will turn down the compressor after 15-30 mins.

To be honest coming from older gen R22 ac, I found these newer gen R32 compressor are noisy, 2 different brands, inverter and non inverter (non inverter the worst).

My Panasonic no fan mode? How to do that?
Yes I knew this trick but can't apply to my Panasonic, sad.

That is nanoe-g feature I believe, our office has that I also observed its operation after switching off, unfortunately my house unit is just standard R32 inverter without this and no fan mode which is strange...

It's about 3.5 years since I installed the Panasonic 1.5hp R32 Standard Inverter. I usually diy spray wash the indoor unit annually.

Recently I found the compressor speed will slowed down after 10 mins of usage on hot day, check current 1.8-2A at main switch when it's slowed down. The lower temp and higher blower speed, the more easier to trigger this effect. So today I check the outdoor unit and found the dirt, that was crazy thick just after 3.5 years? I recall my previous old Toshiba only washed once in 15 years and still working good.

Anyway, tried to diy wash the outdoor by spray water and use the Mr. DIY car aircon cleaner spray. I wished to open up the outdoor unit to do proper cleaning as per YouTube videos. Too bad my installer installed the unit right on top with super minimal clearance to the top for opening the top cover, and the side screw was deep inside for me to reach as well.

Some photos of before and after, dirt are still inside the porous, maybe just barely 30% dirt washed off. Will be observing if it improved on hot day.

This post has been edited by voscar: May 1 2022, 09:05 PM


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Before cleaning the compressor will occasionally slow down during hot day, after clean due to raining season yet to experienced that effect as of now.

You used those aerosol spray or those pink color ac cleaning chemical?

Ya no service, daily estimate 5 hours usage since parents at home, afternoon hot weather sure on.

BTW, I'm still able to reproduce the problem. On lower temp and high fan speed, example 21c and 3 or above higher fan speed, then compressor confirmed will slow down after 5 mins. We usually use 25c and fan speed 1 or 2 then will be alright to use.

I suspect then ODU fan spinning was weak, very less wind blowing compare to last time, jialak quality so bad less than 5 years already weak. I check YouTube the capacitor seems to soldered on the ODU PCB board and 5 years compressor warranty seems doesn't cover this item...

This post has been edited by voscar: May 13 2022, 09:02 PM

Indoor ok, wind was strong for indoor. I got do annual cleanup the indoor coil and roller fan with brush and sprayer, it was tip top for indoor unit.

You mean now compressor not good will not able to run full load? Coz normal slow load (inverter) it's still cooling good.

Perhaps nowadays the weather is really too hot so I see a few users here also experiencing same problem especially dirty ODU...

Today do thorough DIY clean-up for ODU by removing front cover and fan blade, spray water from inside to outside, and uses another bottle of DIY auto aircond cleaner. Indoor unit also do thorough cleanup and brushing...

If still same issue then will call warranty center liao.

This post has been edited by voscar: May 16 2022, 08:51 PM


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Actually indoor unit I always did annual cleaning before CNY, using sprayer mixed with car wash shampoo, spray and use toothbrush to scrub it, then spray clear water again and scrub, at the same time will spray the roller fan there as well but didn't open up that console. So it was quite clean before today's job also.

This post has been edited by voscar: May 16 2022, 11:36 PM

Bro, the Kleenso I think is too strong, when I spray can feel the mist touch my skin and little pain. Then I see discolouration on the bottom roof part beneath the ODU after wash.

I think it too strong might attack the fins, only can use once or twice per AC lifetime...

Mine compressor just spoilt, 3.5 years. Waiting warranty replacement, but need to folk out huge sum of labor fee...

Your next reply the second one.
Air blow out 23-24c I also don't know why, this morning just done replacement later I try.

Hi, usually aircond blower outlet wind temp how much? After replace compressor feel my AC still not as cool as before, measuring about 18c on the blower outlet. Before this I never measure so don't know what is the suppose range. Technician told me the refrigerant pressure is around 150-160, R32 type, is this healthy range? Google saw should be higher 177 something above....

My room smaller 1hp AC with door wide open already 11c like that after running 15 mins...

Guys, is it normal to have evaporator coil cool and wet on upper part, 18c; but warm and dry on lower part, 24c?
Or it should be consistent cold and wet?


This post has been edited by voscar: Aug 12 2022, 08:39 PM

Brand P...
The technician came to vacuum the refrigerant again and refill it, if pressure set to standard 150 psi 4.5A at compressor, it's not cooling. Have to increases to 170 psi 5.1A like that only it's getting cooler.

I didn't climb up to measure the coil temp, the air was cool but not as great as before problem, also morning turn on aircond time will have water boiling noise at IDU for 2 mins.

This post has been edited by voscar: Aug 21 2022, 09:15 PM

Already 3.5 years unit, so left only compressor under warranty.

Few months back starting have symptom, if run higher fan speed and lower temp, the compressor will switch to very low power mode after just 5 mins of running, so I can only use higher temp 25c and fan speed 1, 2 for medium compressor speed. Then few weeks back starting not so cool, the air blew out just windy feel only, compressor refused to run higher speed already even set to lowest and full blast air. When technician came he said my gas pressure is too high at 190 psi so he releases to 150 psi, then is even worse the air blew out only 24-25c, he said it's normal but I told him it's not normal, then he proceed to claim warranty on the compressor. The strange part is why at the first place the pressure was high even though when newly install this aircond that time the technician only do measurement and didn't add refrigerant, and after years I also never get outsider to top up refrigerant also...

Manufacturer appointed 3rd party technician.

No, don't have report, invoice for service labor yes