Wipe the IR sensor w soft microfiber gently on both remote n IDU.

Based on your explaination, then it should happen from day 1 of installation.

i got rm200 voucher

ic, i got 200 voucher but with the price 1280 + shipping fee. couldn't find any cheaper at lazada

Hi sifus, recently my aircon broke down. It was blowing normal/warm air instead of cool air.

I noticed that the compressor fan is still running, and the compressor sound is softer than usual.

It is an old aircon 1.5hp Panasonic aircon (CS-PC12EKH)... probably more than 10 years already. I managed to get someone to check. He told me is it time to change the whole aircon even though he has not done any checking.

Is there anything that I should or am able to check first?

Lol.
Get someone else to check.
Most likely it is just a compressor start capacitor that fail.

Easy fix.

Who is the someone ? Generally if you ask people, he will advise to change for a 10 years AC.....is oredi worth your investment ! All my Pana AC are above 10 years and still running. But if you have intention to replace another efficient AC invertor, then go ahead.

When wss the last time you did a full cleaning service? If you can find a technician who is willing to do the service now, then that is the first step you need to detect the fault.

If you are not a diy guy, then just clean the air filter and test again.

If that fails, you may need to clean the outdoor unit using a garden hose. If you cannot reach it, then DONT do it and wait for the AC technician.

That someone was an aircon technician. He came, took a look at the compressor (without opening it) and I think shaked it a bit (sorry, I wasn't around at that time to see), then the compressor started to work normally. However, a few days later the problem re-occurred.

The last full cleaning service was done on Sep 2019. After that no more because of Covid, didn't want unnecessary contact with outsiders.

I do clean the indoor unit filter regularly, so this should not be a problem.

For me, if possible, I would like to repair it instead of changing a new one, trying to minimise expenses. Also, not sure whether my current copper piping can support the newer inverter gas though. I heard that older piping may not be thick enough (sorry, that's what I heard, not sure how accurate is it).

Your AC is overdue for a proper cleaning. The blower would have clogged up eventhough you clean the filter regularly. Similarly the outdoor unit coil as well. During the process, the technician should be able to detect the fault.

The installer should be able to advise regarding reuse of old piping after inspection. Generally it should be ok for those very old piping with proper flushing.

This post has been edited by mini orchard: Jul 5 2021, 08:04 PM

Inverter only control the motor. The gas is the same regardless INV or NON, if both takes R32 it will be the same gas.

Its nonsense like pricing the car wash RM10 for blue car and RM20 for yellow car.

I used to sell actual inverters for a living.
For customer with fabric thread making machine, as I know they don't have inverter threads and non inverter threads.

Generally as long as old piping not leaking for AC you can reuse it. Thickness in MY noone really use up to spec 0.8mm thick one, but it can be checked with a vernier caliper easily. Mostly cheapo one is 0.61mm thick and better ones commonly available will be 0.71mm thick (acson/daikin pancake). 0.81mm one you need to specially buy inaba denko copper pipes.

This post has been edited by ceo684: Jul 5 2021, 08:44 PM

Changing the capacitor is a cheap fix. But proper handling of capacitor is very important. You need to discharge it completely before even touching its terminal connectors, easy way is use a hot lightbulb (those old tungsten bulb). Capacitors are supremely dangerous and someone here mentioned his neighbour could have lost body parts because (presumably charged up) capacitor blew up. You must be 1000% aware of how to handle and discharge 230V capacitor safely before starting.

This post has been edited by ceo684: Jul 5 2021, 08:53 PM

No wonder some would just advise to change to new set!

It was never confirm it was the capacitor malfunction but a mere speculation. For an experience AC technician, changing capacitor is easy money job compare to installation of new AC.

yes. charging rm 100 for a capacitor that cost rm20.
total time to change just less than 5 minute

Thank you all sifus for your views. I think I'll have to get another technician to check and repair if possible.

Mr CEO, my current AC uses the R22 gas. So, I'm not sure if it can support the R32 until I get a technician to check it out right?

Miss CEO.
Seeing that its aged and R22 (not R410) it could be a better idea to get a new inverter unit, your bills should reduce (OPEX savings) if the aircon run everyday. If rarely used then can repair lah.

Hi sifus, newbie here.

I have recently bought a Sharp aircon from Lazada to replace my 10+ years old AC, want to confirm with you guys if the aircon will fit my existing piping or not.

My old AC (IDU and ODU doesn't match)
IDU: Toshiba RAS-13YKX
ODU: Upson UAC-N19C (cannot find anything related to this)
BTU: roughly 13000 after converting from kW
Suction line OD: Toshiba spec sheet says 12.7mm (1/2 inch), but I measure my old line is 9.52mm (3/8'). Attached spec sheet as pic below.
Gas: R22, old pipe so I expect thickness is 0.51mm at best.



The AC that I bought on Lazada
Model: Sharp AHA12WCD
BTU: 12390
Gas: R32
Suction line OD: 1/2' from website
https://my.sharp/products/air-care/15hp-r32...tioner-aha12wcd

My original piping is concealed so I really prefer to use back the old line. I am aware that R32 operates at a higher pressure and I am willing to take the risk.
But now the main question is if my original line will fit my new AC set or not? Any advice?

Any quiet 1HP inverter ac to recommend? From research seems like Mitsubishi and Daikin would be the best choice

Don't really mind if it has fewer features/lower cooling power as long as both the indoor/outdoor units are quiet

er..if you mean sound of ODU, D quiet ODU? maybe need more research

generally very quiet for the reputable brands, if the ODU is correctly mounted and not just put unsecured on bracket without mounting bolts.

mitsu and hitachi ODU pretty silent. only wind sound. no neighbour will ding dong to complain.

An experience installer will have the skill to have it fit either using a pipe expander or a connector.

Proper installation using a spirit level is important. A tilt can affect operation and noise.

The indoor unit must sit perfectly on the bracket. The cover must have a tight grip to avoid vibration. A low fan setting will have less wind sound.

For outdoor unit, avoid placing directly on top of window opening. Place rubber washers on the four corners bracket where the outdoor unit is sitting to reduce vibration noise. Request the installer to tighten all screws.

Noise level is dependent on individual. Some are heavy sleeper and a loud thunder wont wake them. A light sleeper will find the air cond blower noise irritable....cant comment much about 'noise' on the two brands