Hi All,

I just bought 6 Daikin aircons and installed them (by aircon technician) last week. 4 of them are inverters and 2 are non-inverters. After a week, the 4 inverters still running ok but the 2 non-inverters are no longer blowing cold air. The indoor units for the non-inverters are running but the outdoor compressors are not running at all. Anyone have this problem before? Gas leak? Compressor faulty? Fuse broken?

Please advise.
Thanks!

Regadrs,
Lim

Temperature set too high?

Obviously not.

I already tried to set everything possible on the remote, 18C, varying fan speeds. Powerful mode. All to no avail.

check which mode u r using, fan/ cool/dry/hot, make sure u tune in to cool mode

All tested.

I heard from someone might be due to fuse blown because of TNB electric supply not stable. Someone suggested to bypass the fuse.

sometimes not because tnb supply is not stable. I'm not sure what is the max kw that is allowed to be used at one time but usually if you switch on like 3-4 a/c & water heater, power will be automatically cut off. Unless you change your main power to those that can allow more current.

If u bypass the fuse, one day when there is too much of electricity, will cause fire....

Is that the issue ? Cause if it's fuse blown your blower unit will not work as well. Right now your blower is working but your compressor is not. My guess is gas leakage?

The compressor is controlled by a relay usually can be found on the integrated circuit in your indoorr unit. Some use relay and some use contactor. It worked like a switch. Your indoor will running 24/7 but your compressor isnt. You can use testpen to check if there are power from the output of this relay. If they are power, try to check if your compressor make any sound from your outdoor unit. If they are, it mean gas leakage. You can bypass the relay though since it carry single phase 240v to power up the compressor.

Hi Shazzac,

You got confused when I mentioned the fuse. It is not the fuse to my home supply (else indoor unit and all my lights will be off). I mean the fuse inside the external unit (the compressor).

My aircon technician checked the connections and piping and all ok (no leaking, electric supply is there to the input of the compressor). He suggested me to call up Daikin support. I did and now waiting for them to respond. However, just want to check with this forum to see if anyone has the same experience and what is the root cause. I don't want to get conned or given lame excuse by Daikin ppl.

Regards
Lim

If thats the case, i can only think of :

1) Your compressor capacitor need to be replaced. Without the capacitor's help, the compressor dont have enough "juice" to start up even though there is a supply flowing into it.
2) Ask your technician to check whether the compressor is really running by using ampere clamp meter and clamp the live wire to see if there are any amperage. If the ampere value is below 1 to 0.1, that mean your compressor doesnt run. If the ampere goes high such as >15 Ampere, that mean your compressor already jammed. There is 1 more thing, the "thermal relay" on your compressor already spoiled. This relay acted up as overheat protection to the compressor. It the compressor overheat, it will cut off the power to the compressor. You can try to bypass this relay if there are any.


P/s : there is a label/sticker on the ourdoor unit that stated model, running ampere and more. Check the running ampere value, ask your technician to bring ampere clamp meter to check if the value on the meter are the same as the sticker/label. Perfect running unit should give almost identical value

This post has been edited by Erza Scarlet: Jan 7 2011, 11:02 AM

How can you get con if your unit still new and under warranty? Have you been using over a yrs?

I don't think there is a fuse inside the outer unit. There is only circuit breaker that protect both.

you need to test the indoor unit with max fan speed and lowest temp settings...
then go outside to see if the outdoor unit cooling fan and compressor motor are running or not...
if confirmed something on the outdoor unit faulty...
1. compressor motor might be faulty
2. compressor motor capacitor might be faulty
3. compressor motor starter (relay or contactor) might be faulty
4. cooling fan might be faulty
5. no or low gas
6. blocked gas pipe

Bad bad idea.

If the compressor is not running, it just mean something is not right.
Call the air-cond manufacturers service centre to check or electrician to check where is wrong. Either compressor motor or PCB board that control the compressor.

If the TNB electric supply is not stable, then your main CB will trip, or your house all appliance blow out.

Please DO NOT dismantle fuses, or CBs, they are there to protect and safety issue.

Thanks for all the feedback and suggestions!

I have called Daikin customer service and still waiting for them to come after 1 week! Damn slow service. The excuse is they have long backlog of customer complaints due to the year-end holidays and most of their staff are still on leave...

I bought 6 Daikin, 4 inverters and 2 non-inverters (rm855 each). Both non-inverters' compressor stopped working after 1 week. Really bad experience I had with Daikin.

Originally wanted to buy 2 Sharp's 1hp basic model instead (cost rm800) instead of the 2 Daikin non-inverters, but the shop ran out of stock. I woudn't had this problem if I had waited for the shop to re-stock the sharp ones (2-3 days delay) instead of rushing for the daikin ones (now 1 week+ no aircon for 2 rooms) ...

Really regret.

Guess the non-inverter models are not the flagship product for Daikin and they don't uphold the same QC as the inverter ones...

Hope I don't have the same bad experience with the inverter ones.

daikin is a well known brand and the price also ....
I dont think you shall regret. Just constantly follow up with them to get your two units fixed.

The problem should be with the compressor since non inverter is start/stop type.

I installed a brand new ac 3yrs ago & haven't used it ever since and dare now open it now. Can i just top up the gas & use again ? Worry those aircon ppl will say need to service this&that & cost me $.

If the air-cond is at good condition with no leak, why it need to be serviced?
It can be used.

After all, those ordinary service just wash your blower and compressor, and top up gas only.
They are not going to grease the bearing inside the compressor etc. <-- which is the main concern for part that not running for long time.

Thx cherroy, i'll try to on it and hope it runs fine

Finally, the Daikin guy came today and he managed to fix the issue within 15 minutes. The problem was because the fuse at the compressor has blown. The guy just bypassed the fuse and now it worked. According to him, this is very common for Daikin non-inverter models because the fuse is meant for Japan electric supply.

I wonder why is the problem only affecting Daikin non-inverter models only.

the electronic board itself got problem.check the wiring connection in it,maybe the compressor relay not turn on.

Actually for daikin is alot problem of ERR message to be sovled, once the err message or led light ticks ticks then for outdoor compressor no function already.

so my friend told me, he is working in singapore for aircond company and have everyday call in for service and repair just only one brand daikin, if you are know how to sovle the small EER message problem, then you can used daikin aircond.

wanna ask if got 2 HP air con acson..can i change the indoor unit to 1.5 HP. does it still use power as 2HP..newbie..

Yes. Because the 2hp aircon is mean the compressor is 2hp size. Which the compressor is locate at the outdoor unit.

thks ozak...

Can we use 2 unit : 1 HP using 1 outside compressor 2HP?..

if so...best gilo ni...

There is such aircon in the market and it is not new. Even 4indoor with 1outdoor also have. Very famous in spore and HK.

But you cannot simply just hentam mix and match the indoor and outdoor as you like. It doesn't work.

Ok..but it can be done?...maybe have have special 'T' piping?

For the detail, I not sure it can be done. Probably cannot.

What I know is, the outdoor unit have 2 piping out for each indoor unit.