Fujitsu AR-DL3 remote?

[olivluca]

I have a 25 years old fujitsu air conditioner. I don't remember the model and I cannot find a label.
The remote is an AR-DL3 but it's a replacement one I bought on aliexpress. It was sold as "Remote control AR-DL3 for fujitsu air conditioner AR-DL1 AR-DL2 AR-DL4 AR-DL5 AR-DL6 AR-DL15 KTFST003", it's missing the button to control the horizontal swing, the remaining functions work. Any archaeologist here could tell me if it uses one of the supported protocols?
This is a picture of the remote:

[olivluca]

Analysing the raw captures with the help of AI it seems to match either the ARDB1 or the ARJW2: the long frame is 15 bytes, the temperature and the power flag are encoded in byte 8, not sure about the rest. My unit has both horizontal and vertical swing, so there's a chance it's the ARJW2.
I'll have to find an IR led and check (currently the only device I have capable of sending and receiving IR has a beken processor that only works with libretiny/esphome).

[olivluca]

Using the ESPHome-IRremoteESP8266 repository I can confirm that ARJW2 works, though, even if I can step the louvers both horizontally and vertical, the swing doesn't work, maybe because of this?