[Solved] Peugeot 207 Climate Control Issue: Uncontrollable Blower Fan Speed Despite Display Changes

Hello.
I have a problem with the Peugeot 207 car, the blower fan is running to the max
and it is not possible to change the speed (climate control installed), after pressing the display, the displayed fan blades will change, but it does not change
fan speed.
What could be the reason for this behavior or the cube connecting the fan ??

cinko wrote:

What could be the reason for this behavior or the cube connecting the fan ??

90% no. There are two options either a panel or a blower resistor (electronic regulator). I personally bet on the second option.

Information for other users:
The blower regulator (commonly known as a resistor-resistor) is located on the driver's side
next to the gas pedal.
After removing it, it turns out that the transistor mounted on the heat sink is damaged
with the designation HUF 75344G I used INFP064N as a replacement because I had one. Colleagues on this forum suggested a replacement for H80NF55-08
.
Reading on other forums the symptoms may be the same as for me, i.e. the fan-blower is working at full speed and it is impossible to change the speed or at all
there is silence and the blower is not working.

As I wrote above, after replacing the transistor, everything returned to normal.
Thank you.