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Fujitsu inverter air cond. Just stopped working properly. Model outdoor AOT30PMAL indoor unit AST30PBA-W. Code oper. Red led flashes fast continously green led (timer) repeats 13 slow flashes. After power reset it takes rem. Con. Commands however while inside it looks normal the fan in outdoor unit starts but compressor only makes attempts to start. After a number of series of 3-4 starting attempts it stops and fan stops. Three way resistance test does not indicate open or short circuit compressor. It reads 0.8ohms in all 3 readings.no winding to body shorts too. When comp. Wire disconnected after some time same fault code flashing appears. A red led on the major inverter board starts with intervals of 11 flashes. The voltage going to compressor when compressor disconnected appears to be erratic. It only stabilises to approx. 134v after fan stops (compressor wire disconnected). is there a way to find out whether the compressor is faulty while it appears that the inverter assembly needs replac

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It sounds like your inverter is at fault. You will need an inverter tester ( most good service techs will have one ) to prove that the output to the compressor is correct. If the inverter is okay then it will be the compressor at fault with a location error or it is simply seized. A common fault that caused this was the eev remained closed (coil failure ) and caused the compressor to over heat.

Posted on Jul 15, 2010

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Fujitsu astra07jec. 3 flashes on timer I have changed batteries in remote. Turned off and on at outdoor unit and still not working Indoor unit still blows air but not cool Please help


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I have a fujitsu air con which is flashing 3 times on the timer. It runs for 10 seconds and then shuts down and then flashes 3 times. Model is a AOTR09LCC


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Try turning power off at isolator for ten minutes and then switch back on. If error code persists, you will probably need a new controller PCB in the outdoor unit.

When the indoor unit does not receive the signal for 10 consecutive seconds during the operation >Permanent stop after 30 seconds.
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Check the indoor /outdoor cable connection (in order). If the cable wiring is not abnormal, measure the voltage of the outdoor
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I have a Fujitsu inverter split system,(ASTA18LCC) which the power was removed for a while. Now when you start it up on any mode the red operation light is on briefely, then the green timer light flashers...


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Then press and hold "energy save" and "zone control" buttonsimultaneously for at least five seconds, the error code will be along thelines of En:nn where the "En:" is the error code and the":nn" indicates the indoor unit address if there are multiple indoorunits connected to the one controller. If the upper vertical bar on the capitalE is missing so it looks maybe like a 2 or something don't worry for somereasons they just do that
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E1 Communication error between indoor unit and outdoor unit,
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Is it helpful?

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Kelvin, the first step is to turn off the power to the outside unit. The indoor evaporator unit is fed off the outdoor unit. Let it off for 12 - 15 minutes and then turn it back on. This will reset the microprocessor to start up properly. If it does not, then you need to call a service tech to diagnose the problem. They can get phone help from the professionals in NJ - if in the USA.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/dan_77d17b8918f54455

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I have run into this with the LG brand systems. try shutting power off to the outdoor unit to reset all units. If problem persists, it could have to do with a charge level of refrigerant (freon) or possibly a failed control board.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cody_17f08cf8e340c06c

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1 Answer

Fujitsu AOT30PMAL inverter outdoor unit not working


Sounds like your compressor is seized or a start fault. If the unit is under five years old it should be under warranty. Call Fujitsu warranty out to have a look at it for you.
Contact details as follows
http://www.fujitsugeneral.com.au/contact.php

Sorry but either way I think your going to need a part there is very little that I can do unless your in WA.

Hope this helps

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