IR code sended seems to be too short for my HVAC

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1

I have a Electrolux Heat pump
I know that HVAC Ir signals are more complex than IR signals for TV.

When I tried to decode a IR signal, I get this:

3020040A
Decoded NEC: 3020040A (32 bits)
Raw (74): 8950 -4450 650 -550 650 -550 650 -1600 650 -1650 650 -550 650 -550 650 -550 650 -550 650 -550 650 -550 650 -1650 600 -550 650 -550 650 -550 650 -550 700 -500 650 -550 650 -550 650 -550 650 -550 650 -550 650 -1650 600 -600 600 -550 700 -500 650 -550 700 -500 650 -550 650 -1650 650 -550 650 -1650 600 -600 600 -550 650 -1650 650 -550 650

So the easy way is to try to send a NEC code like this:

irsend.sendNEC(0x3020040A,32);

But my HVAC make no beep.

So I take my photo camera, my arduino IR led is lighting when the IR message is send.
To find my problem I have compared the light emitted by my HVAC IR controler, and it seems like the light signal is more longer on the original controller than my arduino IR Led.

I've tried to send RAW data directly without effect.

Is it possible that the decode program (IRremote: IRrecvDump) is stopping the decoding too quickly? So I don't have the entire message?

Please help me, I spent too many hours trying to make it work :confused:

2

Check out this:

3

Thank you so much!

With the script provided here by Analysir.
I was able to record my Raw signal who was 139 long, not 73.

And when I replay this signal with my IR led, my HVAC make a bip!

And now I can finish my domotic implementation.