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 Aircon Discussion V3, Home Appliance

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voscar
post Apr 28 2023, 01:24 PM

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QUOTE(Par@dox @ Apr 28 2023, 05:30 AM)
Yup, the noises are annoying alright.

Lately, I have been very disappointed with my Panasonic appliances. Washing machine giving problems even though it's relatively new and seen only light use. Pump on my Panasonic thermo pot also started acting up. The aircon is the last straw for me. Not going to buy anymore Panasonic appliances until I am confident they have addressed their quality issues.
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Unfortunately I had to replace my Pana 1.5hp R32 standard inverter just barely 4.5 years, due to gas leaking. Last year replaced compressor when I complain not cold, this year January not cold again, pressure dropped then they refill gas and told me not worth to repair, better replace it. March starting not cold then I have to replace it...
voscar
post Apr 28 2023, 05:10 PM

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QUOTE(Gargamel_gibson @ Apr 28 2023, 04:44 PM)
Why dont ask second opinion. What I do usually is I call panasonic to recommend me contractor, more reliable.
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It was their contractor...
voscar
post May 7 2023, 07:13 PM

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Mitsubishi Electric JS 2.0hp inverter Fast Cooling mode, 25c blower fan speed 2, and 25c blower fan speed 1 current consumption comparison


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voscar
post May 8 2023, 10:57 AM

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QUOTE(pigduck @ May 8 2023, 02:05 AM)
Very helpful
So putting on speed 1 saves a lot.
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Yes, I think the power consumption lesser than those non inverter 1.5hp, I frequent see those consuming about 5-6A.

Also the current draw will slowly reducing after cooling down the space. Mine was living room so not obvious..


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voscar
post May 8 2023, 11:07 AM

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QUOTE(andrekua2 @ May 8 2023, 11:01 AM)
Buy LG premium inverter la... can self activate inverter.
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"can self activate inverter"
Not understand what is that mean? I can self adjust the current draw? Usually inverter aircond current draw varies based on your set temperature, blower fan speed, fast cooling etc. LG got additional activation?
voscar
post May 8 2023, 12:22 PM

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QUOTE(andrekua2 @ May 8 2023, 11:17 AM)
Not so complex la.

LG has a button on the remote whereby you can limit the cooling capacity of the AC by limiting the power draw. It has 4 settings, 100%, 80%, 60% and 40%. Hence you can turn your 1.5HP into a 0.6HP AC when you manually set it at 40%.

» Click to show Spoiler - click again to hide... «

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Good and useful feature, didn't know that, thanks.
voscar
post May 8 2023, 06:45 PM

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QUOTE(pigduck @ May 8 2023, 04:44 PM)
Will it cause mold to grow in the aircond if there's not enough air coming out of aircond? jelly type
or will the ac develop ice?
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Compressor speed would be reducing based on temperature and blower fan speed, the current amperage reduction was due to lower compressor speed as I can hear clearly the outdoor compressor running on lower mode with lower blower speed.
voscar
post May 8 2023, 10:55 PM

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QUOTE(ToniV @ May 8 2023, 08:52 PM)
Anyone using Mitsubishi inverter airconds? How is the reliability?
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Mitsubishi Electric or Mitsubishi Heavy Industry?
I'm just started to use ME inverter less than a month, can't speak for the reliability.

It replace my previous Panasonic R32 standard inverter, which is my first inverter and I liked it during the earlier stage. However, 4 years of usage it starting to have poor cooling problem then gas leaking problem...
voscar
post May 9 2023, 12:11 AM

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QUOTE(pigduck @ May 8 2023, 11:26 PM)
Does your AC have eco mode to test that? And dry mode... How much electricity it uses?
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Got, will test out later this week.
voscar
post May 9 2023, 12:14 AM

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QUOTE(ToniV @ May 8 2023, 11:04 PM)
I'm not sure about it. Will check it out. Which is better?
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I'm not sure of MHI inverter series, but their R32 non inverter standard model I observed from Facebook aircond group, is actually Made In China from Midea factory.
voscar
post May 10 2023, 09:43 AM

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QUOTE(ToniV @ May 10 2023, 09:26 AM)
I just checked it was mitsubishi electric

Getting quote
1.0 hp  rm1550
1.5 hp rm1850
2.5 hp rm 3250

Price are slightly cheaper than Daikin. However the sales person is recommending them for the reliability.  I do know about the sales incentive. Might go for Panasonic or Daikin if mitsubishi reviews are bad.
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ME I see bad reviews on their after sales service, Panasonic outsourced their service to a few 3rd party, Daikin after sales service very committed and friendly.

Both Pana and Daikin I experienced their onsite service. Daikin a few years back I complain their non inverter compressor was very noisy since new bought, they quickly sent their own technical team to attend, and set appointment to help wrap a layer of soundproof insulation.

For Pana, the experience was last year and this year, they totally outsourced the onsite service to 3rd party, I emailed them complaining the not cooling problem, they sent me a list of their contractor contact, ask me to approach them myself. Then, here comes bad news, onsite service will charge you the "inspection" fee, I proceed to claim warranty on the outdoor compressor, got charged of "first time onsite inspection fee" + hefty labor fee for compressor replacement. But the problem now it doesn't seems to be compressor problem, rather some mystery gas leaking or some valve stuck I guess. So i spent a big amount on these and 6 months later i have to replace aircond due to leaking gas. I made enquiry and complain about not cooling problem at their official CS email, they just divert back to the same 3rd party and i got the phone call from that. So I no longer put my confident on this brand due to such service.

Therefore this time I try ME...
voscar
post May 10 2023, 10:08 AM

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QUOTE(Momo33 @ May 10 2023, 09:49 AM)
my take  ,  assuming all set to 25 C .
the room cooling rate  will  change  .  cos  of current draw  amount.
with fan speed 1 it will take longer to reach 25 C .

end of day the power savings are about  equal/ same  for this situation.

i would rather set fan speed at Auto and let the AC logic  control fan speed . the  AC logic knows best .
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Throughout 25 years of AC usage, my living room would never reach the set temperature as it was open space to kitchen. We mostly use the AC for 4-5 hours max, directing the AC blower fan to dining table during meal which is sufficient.
voscar
post May 10 2023, 10:09 AM

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QUOTE(ToniV @ May 10 2023, 10:06 AM)
This time u want to try ME? Any good reviews boss?
My friend is servicing aircond. He told me to avoid ME at all cost because parts are not easily available. He recommending Daikin and Panasonic.
Anyone can confirm the reliability of ME inverter system?
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Using now, less than 1 month.
voscar
post May 10 2023, 11:10 AM

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QUOTE(Momo33 @ May 10 2023, 10:17 AM)
my take ..  this  Repair tech is  incompetent.
leaking gas most cases are at the  joints . could be an installation problem .
if your ODU is place on the
floor , its need to be secured tight bolted  to the floor.  to avoid ODU movement . i had this issue before.

so now Pana  charge Onsite inspection fee.  sad.gif
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Last year the repair tech keep arguing with me my aircond no problem one, 1.5hp cooling is like that. I used 4 years very good but now not cooling he told me it's normal due to aged and require 2.5hp. I even recorded the video showing thermometer checking the indoor coil gets inconsistent temperature, some coil area 24c.

No the ODU was wall mounted.

Yes onsite inspection will charge..

QUOTE(Momo33 @ May 10 2023, 10:57 AM)
i dont have exp with daikin  . my D  AC 7 years  no issue  .
only complaint is the body plastics so flimsy . Pana is more solid.
I diy  open up  to service clean..
 
i guess by now most will follow the trend to charge On site visit fee.
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Pana indoor plastic is also very flimsy, when you use auto swing, you can hear the plastic movement brittle sound, some members here used for sleeping room I saw they complain it was noisy and disturbing...

QUOTE(ToniV @ May 10 2023, 10:38 AM)
Daikin still don't have inspection fee?
Based on the bad technical service by Panasonic informed by vomos, I think good chance to give Daikin or mitsubishi a try.
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My experience with Daikin was 2019, that time their in house technician came attended, no charges at all. Very friendly and good.
voscar
post May 10 2023, 02:16 PM

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QUOTE(Momo33 @ May 10 2023, 11:46 AM)
with 24 deg C  then something is wrong.  cannot be aging  at year 4 .
A normal  AC  after clean service should  record a temp of about 15 deg  C  at the  flap area airflow.

Ensure  that they have/carry  a  IR thermometer  to record  before and after  AC clean service  to  check performance.
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Ya, last year I posted here, the coil temperature after replace aircond. Spent so much money and time (4 times visit) on this aircond. Was quoted need another 280 for gas leaking checking only but parts replacement another fee, so I have no choice but to replace it.

voscar
post May 11 2023, 11:40 PM

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QUOTE(pigduck @ May 8 2023, 11:26 PM)
Does your AC have eco mode to test that? And dry mode... How much electricity it uses?
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Silent mode uses about 3.2A, switch to Dry Mode the compressor seems stopped and no cold air, I never use Dry Mode coz dislike the compressor interval stopping, we like cold breezing air, hehe.

This post has been edited by voscar: May 11 2023, 11:41 PM


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voscar
post May 14 2023, 01:02 AM

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QUOTE(pigduck @ May 13 2023, 10:26 PM)
I'm using Eco mode on my Daikin EcoKing FTNP (3 star). Makes me feel better to know that Eco mode really does save.
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Bro, this one is non inverter right? If non inverter then regardless the eco mode or not it will draw same current when compressor running, due to fixed speed compressor.

My bedroom using old MHI non inverter, used clamp meter measured the current, it was fixed around 4.5A even I changed the temperature and fan speed, unless compressor stopped

This post has been edited by voscar: May 14 2023, 01:03 AM
voscar
post Jun 24 2023, 10:11 AM

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QUOTE(tropicalsunshine @ Jun 24 2023, 01:03 AM)
My second hand aircon for tenants switches on by itself, especially high electricity bill as sometimes they leave for college sem break for 2 weeks and aircon is switched on. We changed the remote control but still face the same issue. Learning that it could be due to various internal issues like dirty compressor etc, after all, it's a 2nd hand unit. Do you guys think it's cheaper to repair this type of fault or just buy a new one? Thanks in advance!
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I think the house might had TNB power interruption, the aircond enabled auto on upon electricity power restored feature.

Don't you have master switch to off the aircond?
voscar
post Jun 24 2023, 01:41 PM

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QUOTE(Max @ Jun 24 2023, 01:35 PM)
Doesn't it depends on the last state?
If off, it should remain OFF after main power resume and vise versa if its ON the on last state.

Yeah. Should have ac master switch.. or tenant lazy to turn it off..
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Some brand can set it to default on after power recovery...
voscar
post Jun 26 2023, 12:07 PM

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QUOTE(-kytz- @ Jun 25 2023, 10:30 PM)
Bumping this in case anyone else have different views smile.gif

As I won't be changing from my R22 non-inverter aircon, wanted to know which consumes more electricity.... lowering temperature or increasing fan speed?
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Fixed speed compressor, as long as outdoor compressor running at fixed speed, consume same amount of electricity.

So lowering temperature making the compressor non-stop will be consuming more. If you set 28-29c on which the compressor stops when the desired temperature reach, then you could save a little (compressor starts up will draw a little higher starting current)

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