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I have a Fujitsu Split air-con system - have power, but the maintenance and timber lights are flashing but unit not working - have cleaned the filters, changed the batteries to remote control unit.

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  • legs11 Apr 16, 2008

    What a waste of my time

  • Mick Ferreira
    Mick Ferreira Aug 18, 2008

    FOr some reason the condensation tube that takes the moisture from the coils to the drip pan seems to be clogged resulting in water overflowing the drip pan and leaking onto the wall and floor. I used a shop vac at the drain end to **** the obstruction out to no avail. I removed the covers and can see where the tube connects to the pan but it is inaccesable du to the motor unit for the vanes and other electronics. Will I havee to remove these electronics to get at the opening of the drip tube so that I may be able to root the tube or is there something that closes this tube for any reason that may be reset? In the past I was able to shop vac out some debris that was slowing the drainage of this unit but not this time. I I have to remove the electrical box is there a site that I may be able to get the schematic or a procedure?

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I had the same problem with ast24rga-w which I resolved by removing the drain pipe from the outside and the use of compressed air towards the inside this made a bit of a mess on the ceiling which was cleaned with ease

Posted on Feb 11, 2009

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Try to disconnect the supply from circuit breaker for 10sec. and "on" again, if it doesn't work you need at qualified technician for that problem.

Posted on Apr 16, 2008

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so like a faulty component look up Fujitsu web sight for trouble shooting should have answers on there web sight

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First check your timer on and off. If you want to reset, remove batteries from remote and power off to unit. Reset it. Now run the unit. Set temp mode once again in your remote and wait for 3 minutes. If still out door unit not working, check power line to out door unit.

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This the common problem with all a/c holders. Without knowing the function of Timer on and Timer off, if it's pressed the unit will start only at setting time.

Please remove the battery from your remote and reset it. And then with use of your manual, set the timer if you need., otherwise normal function will be activated.

Dec 11, 2010 | Fujitsu Heating & Cooling

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The operation and timer lights on my Fujitsu split system are flashing on and off several times when the unit is switched off I noticed this after the system had stopped blowing air & I knew the room...


I have same problem like yours to my newly installed Fujitsu multi-split system (the first time use since system installed 1 week ago). I rang the electrician who did the installation; he said it must be the units themselves nothing to do with electricity.

Okay, then I rang Fujitsu and their local service agent. They suggested me to switch off C/B for an hour to reset the units. I followed the instruction but the indoor units still did not respond to remote control...

It simply looks like no power supply to indoor units (they are hard-wired to the outdoor unit). So I used a multi-meter to test the power terminals of indoor units (Danger! If you have no idea about this, don't even try! ): it seemed no power supply even C/B is on. I turned to the isolator which next to the outdoor unit. The isolator was making arcing noise when I switched it on and off. The indoor units suddenly turned on for few minutes then died again.

So I figured out the problem is that crooked isolator. I called the unhappy electrician to replace the isolator. End story....

I hope my experience will help you a little bit.

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According to the service manual page 8, the unit has an 'indoor unit control error'. Below is the link to the manual. Hope this helps. http://www.oceanairdist.co.uk/assets/pdf/service/Fujitsu/ASYA09LC.pdf
Mat

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On the outdoor unit the fan should not be running, on the indoor unit the fan should be running. If you then check the outdoor unit with fan not running, you should be able to hear clearly that the compressor is actually working. If this is all correct, it is possible that your fourway reverse valve is seeping and needs to be replaced.

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you most likely need a service guy to go out and take a look

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