Just for reference, my small living room now with 2hp Mitsubishi inverter, now I set 30c fan speed 1 only is cool enough.

On hot day compressor will run at normal consuming 4A. At night with Windows showing temperature 27-28c, compressor usually run 3A initially, then gradually reduce to 2A. So there's still power saving compare to fixed speed running non speed. Used to have fixed speed compressor, my father cannot tolerate the hotness with compressor stop, so we never let the compressor stop. With inverter, he's the one setting the higher temperature to enjoy cool breeze air instead of chilling cold

My father installed amp meter himself.


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Will the room still feel cold? This one only yourself can answer because coolness is individual feeling and different environment...

My house still have 2 older 13 years old Mitsubishi Heavy Industries 1hp fixed speed compressor aircond unit. I recall 5 years back my father did unmount the power switch and tap the clamp meter to measure, the ampere did fluctuate up down 3.8A - 4A, regardless setting fan speed full blasts or slow quiet mode, due to its the compressor itself running and drawing huge current.

Want save electricity on fixed speed? Perhaps you may experiment set 25-27c with higher fan speed (but filter clogged faster), so let the compressor have chances to stop-run-stop cycle, but don't let it happen too frequent. On my recent stay at hotel experience, their compressor will stop at night even with 24c set. You really have to experiment the coolness and adjust the temperature yourself...

Speaking of pinhole leak, it was scary experience and not able to detect normally...

Last year my 4 years old Panasonic 1.5hp inverter I complain not so cold, earlier that year compressor would run full speed for 5 mins then slowed down to almost non existent, after 5 mins recovers back itself and repeat the cycle, can only use low speed fan mode not stress the compressor.

Then few months later start showing signs not cold, the authorized technician came and said the gas pressure too high, I think 190psi something, but we never add any refrigerant and i recall the technician also didn't add when installing this unit new at that time. So he releases the gas pressure back to 150psi but no longer cooling, so proceed to replace compressor under warranty. But with standard 150 psi pressure, the cooling performance still not up to expectation, so ask him come again to check he increases to 170 psi, which was good cooling.

Earlier this year, aircond start not cooling again, so that same shop another technician came. This time the pressure found dropped to 120 psi, so he increases to 170 psi back to normal. He explain it seems the aircond have pinhole leak somewhere, that takes a few months only drop slightly, not easy to detect... if want to check, the inspection fee alone I think 300 bucks if not mistaken, that doesn't include part replacement. He also said 1.5hp seems underpowered for my living room, that's why have to increases the pressure higher than standard 150psi to get the correct cooling, this theory legit kah?

Sure enough, after 3 months again the AC not cooling, this time straight replace a new one with 2hp.

I think my living room 18m² only, last time measured 4.x * 4.x something... but used 1.5hp since 1990s old Toshiba until recent years only change. Maybe old days R22 non inverter very tahan lasak

No idea, already moved on change to current AC. Don't want to spend anymore for checking and replace part on that, too much money and time wasted

Report to KPDN for misleading advertisement, else the marketing team will keep repeat same method, either no mention but limited to 1 unit etc.. then we have infamous Lau Li Kung scored that single unit, lol

Malaysia don't have this StarMax model.. I'm using the standard JS inverter model, very bulky I don't know why still call as Mr. Slim

Is it? Surprisingly my mitsubishi JS inverter 2.0hp outdoor unit size I think equal or smaller than my previous Panasonic 1.5hp inverter it replaces, and they both smaller than Daikin 1.5hp standard non-inverter.

Also the mitsubishi I found the outdoor fan running on really slow mode unless I lower the temperature and increases indoor fan speed.. the heat dissipation not as good on sunny afternoon day. Panasonic one outdoor unit is fixed fan speed quite fast actually.

This post has been edited by voscar: Feb 10 2024, 04:11 PM

Benefon The most annoying "feature" of Mitsubishi Electric aircond is the blower flap will automatically swing to upper position blowing to ceiling after 30 mins, it says is to avoid condensation at the blower flap causes water dripping, stated inside user manual. But very annoying indeed always has to readjust the blower position after 30 mins

This post has been edited by voscar: Feb 24 2024, 04:50 PM


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JS model 2hp, yes got left right swing.
We preferred fixed position blowing to cool down our body in hot day instead of swinging.

This month bill RM111, up from usual RM60-80, probably sometime we also use non-inverter AC at sleeping room on for hours.

For Mitsubishi Electric 2.0hp inverter, previously setting 29c it will lower the running current to 2-3A after initial run, but nowadays almost constant 4A most of the time, so not much saving to be honest in heatwave.

This post has been edited by voscar: Feb 27 2024, 08:56 PM

Sure or not so dirty one? You referring aircond at home or office?
Home one even my living room daily usage, quarterly wash once still not so dirty yet.

MHI one heard lower end model OEM from China, forgot which brand.

Mitsubishi one 30 mins will automatically adjust the blower to swing up, you ok? Quite annoying to me

Thought I have already share the statement from the owners manual


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I already said I was annoyed with it, how come if I'm not using I would be complain on this?

I also mentioned we preferred fixed position blowing direct to the position we preferred for comfortable cooling, but after 30 mins this will automatically adjust itself swing to blow upwards to ceiling position.

Why you keep saying auto swing left right up down? We don't want auto swing bro

Bro, you didn't saw my screenshot? Extract out for you...

"If the lower position is selected during COOL/DRY, the vane automatically moves to the upward position after 0.5 to 1 hour to prevent any condensation from dripping."

I use only Cold mode, never use Dry Mode.
I'm not sure what you don't understand... my English so terrible?
First, when I on aircond, the blower was fixed at blowing at lowest position where I'm sitting.
After 30 mins, the blower shift itself to blow upwards to ceiling and stay there forever. Can you understand or not?

JS 2.0hp, if you check a few models' owners manual on Mitsubishi Electric Malaysia website, I think all should have this "feature", at least I check JR non inverter also have it.