Just to update Daikin tech visited today and concluded for U2 error, the outdoor PCB needs to be replaced RM469 + RM200 labour.

However they're not able to replace the PCB due to my outdoor unit is very close to the left wall and they are not able to slot their screwdriver in to open the screw.

They tried to replace the PCB by opening just the right side screw but fail.

Disappointed to say tonight I retested and the AC has gone worst. Previously it is still able to pump cold air at night but now totally not. And the error code has changed to L5 now.

I think all air cond quality have gone down.

In the past 2 or 3 years, 2 of my Daikin have problem. I heard Panasonic nowadays are no better.

Happy to report that I managed to repair my own aircon. This is certainly an eye opener since I am not technically inclined. If not for MCO, I'd likely just have bought a new aircon instead of trying to repair it.

Some tips for those attempting self-repair :-

a) Check the error code as displayed by the aircon remote control.

b) Look up the error code to determine what is the fault, and what is the cause of the fault. It may be a simple fix or may require replacement of parts / piping.

c) If it is a complicated job, no choice lar.. have to call aircon technician or maybe just replace the aircon.

d) If it is a relatively simple repair (in my case, either the fan motor or the fan capacitor of the indoor unit PCB needs to be replaced), then look up the technical manual of your aircon model to see how to dismantle your aircon unit to remove and replace the part. If you are lucky, there may even be a video that someone has posted on how to dismantle your aircon. 

e) Make sure the power source is turned off and remove the faulty parts carefully (take a lot of photos along the way so that you can refer when putting it back together), and then order the parts from the vendor. For Daikin parts, look up Culmi Air Conditioning as shared by Ozak. They carry parts for other brands as well.

f) Put the aircon back together when you receive the parts.

In my case, the fan motor is only about RM100, and the indoor unit PCB was around RM280.. so all in, it was less than RM400. If I took my time to troubleshoot which was the actual faulty part (instead of replacing both), it would have been even cheaper.

Mine was A6 error. I replaced both parts just to be safe.

Can give link where to buy this AC cleaner spray online?

Good that it work for you bro, but I have used those aircon cleaning spray cans before and they don't work nearly as well as a proper wash. There is a lot of dirt, dust and slime in the inner parts of the coil that you won't be able to reach with the spray cans. Since it appears to be clogged coil issue, you may want to do a full clean to relieve some stress from your aircon.

My Panasonic 1.5hp already more than 12 years old. So far good. Just perform diy spray cleaning spray once per month.

Annually ask technician to perform general cleaning for indoor & outdoor

The most obstacles is dust penetrate the blower, which make air blower kinda stuck a bit. Not brave enough to open up the aircond hence ask technician

Thanks for the links. For the one made by wd40, some people say the green color can is better than blue color. Is it true?

Anyone can recommend Aircon shop? Looking for a
1.5 hp inverter , 2 1Hp aircond

Dripping at which section? I would not fault the aircond itself for dripping because most of the time dripping happened because of poor installation or maintenance.

Is the Gree an inverter? or standard?

something like this , not include the compressor

https://www.youtube.com/watch?v=AKSIn4dMElk

this is a super noob question, but is 1.0hp the lowest spec? or is there 0.5hp aircon for sale in malaysia?

Create a seperate aircond only on/off switch next to the plug point.. Should be fairly easy to pull the wire. Don't use 3pin plug to plug your aircond.

Yes correct..slight rattle sound due to flawed blower design..my aircond guy had to DIY a solution..He had to glue back metal spur...But doest affect all units..only if unlucky...the metal spur flimsy.. One of my rooms using sky series..had this problem

What if gas pipe higher than main door unit. Should there be a problem?

This what i meant. 

[attachmentid=10509764]

Thank

So guys what else can cause water leaking from aircond assuming water drainage is not clogged.
I've cleaned the drainage pipe, made sure is not clogged, put bleach and all but if i put dry mode 28c for a long period of time it still leaks which doesn't make sense.

Thank you.