Not, it is the other way round, it makes the whole thread become like junk.

8 days x 24 hours = 192 hours

so if above data is correct, then you have a saving of Rm 32 with inverter

so Rm32/192, 1 hour you save 17 cents compared to non inverter.

So if the gap of pricing of inverter and non-inverter air-cond is Rm200, (200/0.17) you need to use 1176 hours to breakeven before one can say inverter is starting to save you the money.

So if usage is low, you take up to 1-2 years to have a breakeven point before start to save.

So inverter air-cond is very much ideal for those heavy usage one. For low usage like 1-2 hours average per day, it has not much effect.

Don't have much problem with Panasonic air-con, in fact it is queiter than previous Toshiba (before replacing at my place).

Fyi, almost every electrical/electronic part (whatever brand, even Dell LCD I am getting lately) is made in China now.

Warranty issue, never encounter before so no comment, or it is good we don't need to deal with as it means thing working ok.

Not mean to say Panasonic is good or not, just posting experience.

Yup, for those using less than 2-3 hours per day, using inverter one by paying extra couple hundred is not worthwhile and the saving from electricity bill won't able recoup back the more expensive cost than normal one.

Unless inverter price come close to normal one or electricity rate goes even higher

Possibility
1. Blower dirty, normally blower will catch lot of dirt over time become like fur like which reduce the airblow ability. Can peep through the outlet to see whether blower dirty or not.
Generally blower is one long piece one, seldom got separated into 2 half.
2. Dirty/blocked filter causing air flow difficulty.

Cleaning generally will do the job.

Highly it is blower, always encounter this experience about 6 months- 1 year.

Cooling fin is not a problem generally. If no air after clean the filter, then 99% is the blower fault.
If not enough cool but with a lot of air-flow, then probably it is the cooling part issue.
But since your prorblem is no air coming out, then 99% it is blower.

My solution is using vacuum cleaner to suck the firt at the blower, and also wipe the blower with damp cloth.
It might not as clean as taken out and dismantle the whole unit for cleaning with water jet (like most air-cond cleaner does) but it does do the job of having good air-flow back.

Bullshi@t.

Please install whatever type inverter and operate it at a open space, see how it can save 30% on electricity bill.

Inverter is not automatically save electricity. It depends how is the usage.

R22 is going to be obsoleted.
http://www.ask.com/questions-about/r-22-Refrigerant

Another

Have some read
http://singapore-aircon-r410a.blogspot.com/

Actually 25C is nice, not too cool, not too hot.

You don't want to set at 20-22, then need to wear jacket in the office or room.

You set at 18 or 25, make no difference on the initial stage.
The air-cond will be running at 100% at start.
The temperature set won't affect the motor running for conventional type one. Either they are on of off only.
The temp set is for the motor or compressor to stop working.

Actually it depends on the working environment.
Some place is more cleaner, even using 2-3 years, blower, outdoor condition still rather "clean" and the air-cond still working flawlessly, aka cool enough.
While some, even 6 months to 1 year, both indoor and outdoor unit is very dirty until little cool air coming out.

So it much depends on the air-cond condition. Service when require is more appropriate.

If the air-cond is working fine, gas refill is not necessary.

Inverter air-cond does save electricity if you use it rightly.

If you installed undersized inverter air-cond in a large room, surely you save zero money.

Servicing is more costly, because of more environmental gas being used R410A), and large copper piping as compared mostly still using old R22 gas.
Details about the gas.
http://singapore-aircon-r410a.blogspot.com/

When air-con breakdown, generally people bought a new set (both indoor&compressor), I seldom come across got people bought only either 1 unit of compressor or indoor blower to replace.

If within warrant period 5 years for compressor, the manufacturers is the one replace the faulty unit, not you to find one.

---

Added on December 25, 2010, 12:14 pmConsideration to take into account whether to choose inverter or not
1. The size of your room vs air-cond capacity.
If you are using undersized air-cond, basic one is better.
But undersized air-cond could mean wasting electricity, disregard inverter or non-inverter.

2. How you are going to use it? 1 hour per day, 10 hours per day? If 1 hour per day, the saving is negligible as compared higher cost you paid for inverter vs basic one.
For eg. you paid extra Rm200, and you are saving Rm2 per month as you use only 1 hour per day, then you need 100 month to recoup back the higher cost paid.

3. Whether you have existing piping or not. Most pre-installed air-cond piping are not cater for inverter usage.

4. Environmental consideration, R22 vs R410A. You are actually helping to make the earth more green by using a more expensive R410A, as well as inverter saved (if operated at right condition), by using less electricity.

5. reliability, until we have enough statistic to show, to proof, it is hard to conclude anything on it.
We cannot said, if we seen there are some inverter air-cond breakdown after month of installation then conclude inverter has poor reliability.

As it is new to most, (even after years of it coming out), so it is quite norm, more eye and scrutiny on it.
Just like when there is airplane crash down once a while, everyone said airplane is a very dangerous transportation, obvious it will be the headline news.
But there are many many road accident that kill every hour, but people don't highlight it is as dangerous as airplane.

Until we have full statistic, and more and more people using it and feedback on it, we cannot conclude anything from it.

Sometimes, poor installation, poor installation/servicing can be the culprit as well. Compressor installation position can be crucial sometimes.

I had met once an installer, putting a wrong location, let the compressor sitting in the place that rain can easily reached while, there is another adjourn place that is sheltered away from rain position.
For sure, this compressor is more prompt to breakdown, spoilt, corroded as compared the one away from rain everyday.

Most installers are well-equiped and well trained in basic installation, as everyone already familiar with it.

While for inverter, there may some installer are not well-tranined or not get use to it.
So there may increase change of wrongly installation as well.

This post has been edited by cherroy: Dec 25 2010, 12:16 PM

Sometimes using inverter and new gas air-cond is about environmental issue, which cannot be counted by $$.

I only know there is a standard rule of word (among the installer)
1 HP is for 12 x 12 feet room.

But actual fact is all about BTU of the air-cond as different brand of air-cond deliver different BTU despite all are rated at 1HP.

BTU required = 12 x 12 x (60~80) (factor which can be varied due to room condition, like insulation, people etc, poor insulation mean higher number, just a rough guess/estimate)

If we take 60.
Then the room require 12 x 12 x 60 = 8640 BTU.

Most 1 HP has no problem to have this BTU.

This is typical and very norm.

Experience twice, installer didn't tilt a bit for smooth draining, as we know, dust can be built up overtime, and if the air-cond is not tilt a little more, a slight dirt can cause water staying inside, and worst, blockage and water overflow.

Don't be so "fear" or some said paranoid about bacteria this, bacteria there. No offence.

Everywhere also got bacteria, just keep it clean enough, will do good already.

You spread antiseptic now, bacteria died off now, but grow afterwards, what's the point, periodic clean it will do the job already. That's why condenser is taken down to wash with water-jet after sometimes, when it is too dirty time.

None of your breath air is free from bacteria. But if the condenser is really really dirty and bacteria growth a lot, for sure, bacteria count could be higher than normal, but the solution is to clean them, not spraying antiseptic chemical.

Using too much antiseptic chemical is not doing good for the health, as well as promote super resistance bacteria only.

Please post the photo for sharing, many thanks first.

The problem, it fit?
Some are quite tight fit on the filter side already. Little space left.

Some brand filter is like no working at all. Filter just a little dirt, but blower inside underneath catching dirt until become like brush with lot of fur (the plastic fin), eventually causing little/no air coming despite the blower being set at max speed.

I reckon, this may significant reduce the air-flow to the blower.
Prefer more porous one or less density one.

Anyway, thank for the sharing.

It is not about the inverter run after 4 hours or 8 hours.

The 4~8 hours is the cost you can recoup by using inverter as compared to the conventional.

Inverter can save 30~50% power, but it is significant expensive than conventional, a couple Rm200~300.
If you electric bill is low to start with, aka you use 1 hour per day only, it could take 5~10 years before you can save the Rm200~300 as compared using conventional.

Having said that, future electricity tariff is surely going up, while using less electricity is also part of effort to make the earth more green.

Conventional air-cond does switch off when reach the desired temp.
Conventional air-cond on and off with only one power rating, aka either stop of start at full power.
But inverter can adjust your motor speed based on the temperature feedback, instead on and off at full power each time, that's where the inverter saving come from.

Inverter doesn't mean straight away saving electricity.
It depends how you use it, if you undersize the air-cond, setting the temp too low, room is an open space, you can have the same electricity consumption as same as the conventional one.

And also, take consider that some concealed piping issue, as inverter use different gas and different piping.
So conventional air-cond is not going to die off soon, and has still long time to go.

I don't agree inverter can take over so soon, especially with its price tag that is significant higher.
Do remember, whatever, price factor is very influential factor that affect consumer market, disregard what item.

We are talking about 20-30% price higher, not 2-3%, low usage definitely take years to recoup back based on current electricity tariff rate, which mathematical wise, not 100% sure will convince people to use, coupled with the piping issue as well.
Imagine, your office is a concealed piping one, and you are going to change an air-cond, you don't hack the wall so that you change the piping to accomodate for inverter installation, the situation will force people to buy the conventional one.

There is a formula posted before in this topic to find out what HP or KW needed. Check the earlier posts.

1 hp is not enough.
As a rule of thumb out there or a simple rule that most adopted,
1hp is suit up to 12 ft x 12 feet.