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

Question 1

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

'Serial signal error' that means the outdoor unit is not talking to the indoor unit. Usually caused by bugs, geckos, cockroaches, etc. getting on the inverter board and frying it. You could try turning off the isolator (switch next to the outdoor unit) or the circuit breaker in the switchboard controlling that particular circuit for 10 minutes then back on. Sometimes that clears the error if you're lucky... but not normally. You will probably have to get a replacement controller. Get a tech to diagnose. The boards are pretty expensive but normally can be repaired by the Module Repair Service in Melbourne far cheaper than a new board.

Apr 16, 2018 | Fujitsu Heating & Cooling

1 Answer

FUJITSU Inverter wall mounted split air conditioner Model : AST12LSBCW not working, flashing lights

This is a "PFC circuit abnormal" in the outdoor unit meaning that the outdoor controller board is faulty. Try turning the machine off at the isolator switch for 10 mins, then back on to see if the error resets. If not you will need a new controller PCB.

Nov 15, 2016 | Fujitsu Heating & Cooling

1 Answer

I have two flashes on the timer light of my indoor unit of Fujitsu Inverter ASU9RLS

Serial signal (reverse) error, at operation start up. operation led - off, timer led - 2 flashes, coil dry led - off, check wire between indoor and outdoor

Jul 10, 2015 | Fujitsu ASU9RLS2 Single Zone Wall Ductless...

1 Answer

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

Serial signal (reverse) error, during operation.
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.
[Diagnosis Point]
Check the indoor /outdoor cable connection (in order). If the cable wiring is not abnormal, measure the voltage of the outdoor
unit terminals and diagnose the defective location.
(Refer to the after mentioned [Serial Signal Diagnosis] for the voltage measuring method and diagnosis method.)

Feb 19, 2015 | Fujitsu Heating & Cooling

1 Answer

I have a 2006 Fujitsu Halcyon Inverter ductless split. Leak in the evaporator coil. Service person recommends replacing evaporator coil. Service and parts cost at least 1500$. Is it worth it to inv

not worth repair
when i was in the bizz i did not sell split units too costly if you can go central air

Dec 17, 2014 | Fujitsu Heating & Cooling

2 Answers

P8 showing on air cond and air con is not working

P8-Abnormality in outdoor unit.

Solution:
1) Check the indoor/outdoor connecting wire in proper point.
2) Change the connection of electric wiring, if reversed phase.
3) Check the protection device, if malfunction, replace it.
4) Measure the resistance of the outdoor coil thermistor.
If the resistance is normal, replace the
outdoor controller board
Thanks.

Feb 05, 2011 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

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...

To work out what the error code ispress the orange start/stop button on the remote controller so unit operationis stopped.
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
Some common error codes are:
E0 Communication error between indoor unit and wired remote control, check ifthere is 12VDC between terminal 1 + 3 at remote control and 8-9VDC pulsatingbetween terminal 2 + 3. If DC volts out of Indoor pcb is below about 11.6VDC itwill cause this error, the problem is normally dry capacitors in the 12 VDCpower supply section. This model has two power supply sections on indoor pcb.
E1 Communication error between indoor unit and outdoor unit,
EF Discharge temperature abnormal
Is it helpful?

Dec 27, 2010 | Fujitsu 24C1 Air Conditioner

1 Answer

Hi, my fujitsu air-con outdoor machine never start since this summer the indoor machince is working, the model are ASTA18JCC and AOTR18JCC. I set the cool and temp of 20c when outside is about 30c,...

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

Sep 18, 2017 | Fujitsu 18C1 Air Conditioner

3 Answers

Split unit, I get heat but no cold

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

May 16, 2009 | Fujitsu 24R1 Air Conditioner

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

Jan 05, 2009 | Fujitsu 18C1 Air Conditioner

Question 2

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Jan 15, 2021 | Heating & Cooling

0 Answers

Model AOU24RLXFZ. What does code 76 mean? both inside units.

Jan 14, 2021 | Fujitsu Heating & Cooling

Question 3

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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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Anonymous

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