View Full Version : fujitsu inverter problem
Greek_engineer
24-11-2013, 03:19 PM
hello my friends!
I face some problems with a fujitsu inverter a/c.
model: asya 12 lcc
indoor (on the mask) indicator leds:
red green
flashing flashing (together)
flashing flashing (together)
flashing
flashing
flashing
flashing
.........................................
even in fan mode the a/c is not functioning.
can you help with some information and service manual?
thanks in advance!
install monkey
24-11-2013, 03:23 PM
http://www.mediafire.com/view/3ds6pd94tehnnp9/ASYA12LC.pdf
check the speed of the flashes - service manual above
bigor_2
24-11-2013, 08:11 PM
indoor fan motor is blocked. with a high probability will need to replace the motor.
Greek_engineer
24-11-2013, 08:32 PM
Firstly thanks for the manual,
Secondly the error described in the manual is "locked indoor fan".
What is the reason for this error?
The fan or the circuit border?
Greek_engineer
24-11-2013, 08:34 PM
Sorry, the error is "abnormal lock" of the indoor fan.
bigor_2
25-11-2013, 06:32 AM
10944
check +15vdc on connector CN2 (fan motor).
Greek_engineer
25-11-2013, 09:26 AM
Thanks.I amgoing to check it and then I will inform the rest of the team.
bigor_2
25-11-2013, 09:38 AM
This motors is not survive after hot disconnect/connect. Remember it!
Greek_engineer
25-11-2013, 09:59 AM
What are you meaning "hot".
bigor_2
25-11-2013, 10:17 AM
HOT if power supply is ON.
Greek_engineer
25-11-2013, 11:16 AM
The cn2 has 5 coloured cables.
Which of them should I take the dcvolt?
bigor_2
25-11-2013, 11:22 AM
10945
Black and white.
Greek_engineer
25-11-2013, 11:29 AM
Thanks my friend for the quick answer.
Greek_engineer
25-11-2013, 11:44 AM
The dc fan motor accept the 15 dc volt but it should emit a voltage~signal towardsthe circuit so ad to the latter realise that the fan is working well.Am i right?
bigor_2
25-11-2013, 12:23 PM
If 15vdc (between black and white wire) and check 300vdc (between black and red wire) is present that motor is broken.
Greek_engineer
26-11-2013, 06:32 AM
Where can i find the schematic diagram of the fan motor?
bigor_2
26-11-2013, 06:37 AM
Do you want it to disassemble and fix it?
Greek_engineer
26-11-2013, 06:40 AM
I want to measure the windings of the fan
bigor_2
26-11-2013, 06:54 AM
It is dc motor. Can not ping the coil because between connector and windings there is IC driver.
Greek_engineer
26-11-2013, 07:20 AM
Can you give me a photo or example of what you are reffering to ?
bigor_2
26-11-2013, 07:42 AM
http://mechatronic-design.com/articles/Keeping%20cool_Figure_01.jpg
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