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Topic:
Fujitsu Inverter Air Conditioners
This thread has 47 replies. Displaying posts 16 through 30.
Post 16 made on Tuesday May 17, 2011 at 23:20
winblood
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I have the model AR-RAH1U and I just snipped jumper J5. It works in celsius now! Thanks a lot! Started with an exacto (did not work well), but finished with a pair of electronics cutter I remembered having...
Post 17 made on Friday May 27, 2011 at 15:58
dabrams
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85
My TSU7000 file has support for the Fujitsu mini-split system

[Link: files.remotecentral.com]

I transfered it to a TSU9400 (so it should work with a TSU9600) by using the earlier version of the Pronto Software that supports TSU7000 import.

Last edited by dabrams on July 6, 2012 10:24.
Post 18 made on Saturday September 24, 2011 at 15:00
frat
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--------------------------------------------------------------------------------



hi ,i made the modif on my remote,i have remove the j5 jumper and reassemble the remote and every thing is ok ,but no more signal(the bip from the receiver),is it something i have to do to the receiver or to the remote to recover the signal
new fujitsu 15 rls
remote ar-rah1u
thank you
LUC
Post 19 made on Monday December 5, 2011 at 14:44
arad57
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Hello, I have a problem with multi system unit, the out door unit is model aoy30lmaw4 and there are 3 indoor units models asy9lmacw. At all indoor units the green light fleshing consistently and the red light 5 times, after run test the red light fleshing consistently and the green light twice. At the out door unit all the fuses are fine and the leds are off. There is about 170V between legs 1 and leg 3, there is about 70V between legs 2 and leg 3, at all units. As far as I understood the problem is "serial reverse communication error". What can cause the problem?
Post 20 made on Thursday January 12, 2012 at 19:12
arseno
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Hi, I had a problem communicating with the 12RLS unit after I cut J5 to change over to degrees C, but I found out later that I had a bad connection on the jumper neer the batteries. The problem was not related to the changeover. Works fine in degrees celcius now. Thanks and have a great day.

Last edited by arseno on January 15, 2012 20:02.
arseno
Post 21 made on Sunday July 1, 2012 at 11:06
LarsÖ
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Hi, I'm a new member. I saw this very interesting document [Link: old.ercoupe.com] and thought - may be there is a similar document that solves my problem?

I have used an USB-UIRT (http://www.usbuirt.com/) to record the codes from a Fujitsu remote control and save them in a computer. At certain times the computer then transmits the codes via the USB-UIRT to the heat pump.

To start with, this worked fine with this code sequence:
0000 006C 0000 0082 007E 003E 0010 0010 0010 0010 0010 002F 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 002F 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 0FA4
(263 codes)

But - when I tried to make recordings with any other remote control setting, the heat pump would not react at all.
Example:
0000 006B 0000 007F 007E 003E 0010 0010 0010 0010 0010 002F 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 002F 0010 0010 0010 0FBB
This and all other recordings that fails, contain only 257 codes (6 codes less), which puzzles me.
Very grateful if someone could help!
Post 22 made on Sunday July 1, 2012 at 20:51
3FG
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For some reason, the other learned codes are missing the last 3 bits (6 burst pairs).  Fortunately, as the doc you linked to shows, this is part of a checksum, so we can calculate what it should be. We can turn the pronto hex into a string of 1s and 0s, by noting that the burst pair 0010 0010 is a zero, while 0000 002F is a one.  Tedious to do manually, but I used IRscope to import and decode the signals, using a repeat of 1 and selecting Advanced\IRP Data Format as binary.  Highlight the decode to see the IRP form.  Your Pronto example that isn't working decodes to 001010001100011000000000000010000000100001111111100100000000110010000001001
00000000000000000000000000000000000000000010011010.  Breaking that into bytes gives the following.  The bits need to be reversed in order to compute the checksum, and I've shown a few reversed sequences.  The checksum starts at byte 8
 
00101000--00010100--14
11000110--01100011--63
00000000
00001000
00001000
01111111
10010000
00001100--00110000--30
10000001--10000001--81
00100000--00000100--04
00000000
00000000
00000000
00000000
00000100--00100000--20
11010???
 
30+81+04+20 = D5 and we need to add 2B to D5 to get a sum of x00.
Reverse 2B=00101011 to 11010100 = D4.  It's nice to see that the mystery byte starts with D, implying that our computation is probably correct.
 
So the last three bits are 100 or in Pronto 0000 002F 0010 0010 0010 0010

Here's your non-working signal with yellow denoting a change, and green an insert.
0000 006B 0000 0082 007E 003E 0010 0010 0010 0010 0010 002F 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 002F 0010 0010 0000 002F 0010 0010 0010 0010 0010 0FBB
Post 23 made on Thursday July 5, 2012 at 10:38
LarsÖ
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Thank you 3FG very much for your fast and advanced help!
But - I'm so sorry, your suggested signal didn't work.

Maybe there is something wrong with the USB-UIRT or the Irnhelper?
Post 24 made on Thursday July 5, 2012 at 23:23
3FG
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Oops,
I made a typo:  the first number in green should have been 0010 rather than 0000. Try this one:

0000 006B 0000 0082 007E 003E 0010 0010 0010 0010 0010 002F 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 002F 0010 0010 0010 002F 0010 0010 0010 0010 0010 0FBB
Post 25 made on Monday July 9, 2012 at 07:59
LarsÖ
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Yes!!! Now it worked. Thanks a lot!

I tried to follow your checksum calculation for the following signal (the same as earlier, except for a changed temperature), but I got lost...

0000 006C 0000 007F 007E 003E 0010 0010 0010 0010 0010 002F 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 002F 0010 0010 0010 0010 0010 002F 0010 002F 0010 0010 0010 002F 0010 0010 0010 0FA8
Post 26 made on Tuesday July 10, 2012 at 02:50
3FG
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The 125 binary bits from IRScope:
001010001100011000000000000010000000100001111111100100000000110010000110001
00000000000000000000000000000000000000000010011010
Break this into groups of 8 and skip the first 7 bytes, since the checksum is computed on bytes 8-16:
                  reversed  hexadecimal
00001100  00110000  30   
10000110  01100001  61   
00100000  00000100  04   
00000000  00000000  00
00000000  00000000  00
00000000  00000000  00
00000000  00000000  00
00000100  00100000  20   
11010???    
                        total= B5   
0x100 - B5 = 4B = 01001011
11010010  (reversed)  This is the last 8 bits
We need to insert 010 or 0010 0010 0010 002F 0010 0010

If this still doesn't make sense, let me know how far you get--e.g. did you get the binary 125 bits from IRScope?
Post 27 made on Friday July 13, 2012 at 14:23
LarsÖ
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Thanks again!
I am a MSc and not uninterested in math, so I thought this would be easy to understand - I was disappointed, however. But of course, I graduated many years ago.
So, I still have a number of questions, if you care to teach me:

I managed to get the binary bits from IRScope, manually break them into bytes of 8 bits and reverse them. But
- Why reverse?
With help of the Windows Calculator I computed the hex values. 100-B5=4B= 100 1011 is also ok, but
- Where does 0x100 come from?
Reversed 11010010
- Why insert 010? Where does it come from?

Isn't there an easier way to create the checksum?
Or is it a secret of Fujitsu, which you have revealed?
Post 28 made on Friday July 13, 2012 at 16:14
3FG
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I got the information from the PDF that you linked in your first post.  It says that Word (byte, really) 16 is the checksum, and Word 16 is chosen to make words 8 through 16 add up to 0x100, or 0x200, etc.  Put another way, Word 16 is chosen to make the last two digits of the sum be 00.  So to compute Word 16, add up words 8-15, and subtract the least 2 digits from 0x100.

In IR signals, we can send the least significant bit first or send the most significant bit first.  It's just a choice that the designers of the airconditioner made. All the data in the PDF is arranged so that each word is to be sent with the least significant bit first.  But IRScope presents the bits in the order received, and shows the first bit received on the left side of the word, while the PDF is setup so that the bit which is received first is put on the right side of the word.  So we have to reverse the bits provided by IRScope to get the LSB form that matches the PDF.  If we don't do that, the checksum formula won't work.

Once the check sum is calculated, it needs to be reversed, because Pronto Hex needs the bits in the order that they will be transmitted.

Now recall that the decode from IRScope gave just 5 bits of Word 16: 11010, meaning that we don't know the last 3 bits--Word 16 is 11010???
Our reversed Word 16 that we just calculated is 11010010.  Our calculated Word 16 agrees with the decode for the first 5 digits (11010) and we then insert the last 3 bits into the Pronto Hex.
Post 29 made on Sunday July 15, 2012 at 13:17
LarsÖ
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A big thanks!
Post 30 made on Tuesday July 24, 2012 at 01:49
Masahiro
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Hi, I am new user.
I have used a IR learner called “USB-UIRT (http://www.usbuirt.com/)”
This is very useful.

Here is the brief how to use it.
1.Connect USB-UIRT to my laptop, and install the driver
2.Launch the software called “USB-UIRT Learn Helper Utility”, and press “Learn IR Code” , and press the button of the remote controller toward USB-UIRT
3.IR Code will be shown
4.To test whether the code is learned properly or not, just press “TEST Transmit IR Code”. Then the IR signal will be blasted from the product, and I can make sure.
5.I can paste the IR code(ex, like this website), and test also.

I have learned a lot of IR signals of eclectic devices with this method before.

OK, actually I have trouble to learn Fujitsu Air-conditioner.(A/C)
Judging from conclusion, only “STOP” signal could be learned properly.

But other signals below can not be learned. (see below)
24-HEAT- AUTO,
25-HEAT- AUTO,
etc….

(Degree is different from your site. Because here is using “Celsius” in Japan.)
[Link: texloc.com]

For example, here is the code which I tried to learn “24-COOL-AUTO”. This is not working.
[Link: sugarsync.com]

If I pressed “TEST Transmit IR Code”, nothing happened, although I tried to learn properly.

So I almost give up to learn Fujitsu A/C signal by USB-UIRT.
Then I discovered this website. That’s why I mind to post here.

HOWEVER when I copied codes from this site, it works with some of Codes!!
NOT ALL. The code which it works with is, Posts 21(above), Post 24
[Link: remotecentral.com]

Would someone advice me what’s the difference between the code which works with and other codes?

Sorry , I am not native English speaker. So I am happy if you could advice me as easily as possible you can.
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