307 2005 XT Digital Air Conditioner Fan Continuously working

Hello everyone, I'm sitting in Bursa. 2005 I have 307 automatic XT vehicles. The digital air conditioner worked for 1 minute and stopped for 5 minutes. I changed the heater resistance. Part code (6441 AP). It worked properly for 2 weeks. I turn on the air conditioner and press the "-, +" keys when I want to decrease the fan speed, but the fan speed does not change at all. The thing I ask for help is whether the heater heater has failed or am I facing a new problem ... thank you in advance ...

Hello, were the parts you bought original?

There is a half moon shaped piece on this heating engine. frankly, its name did not come to my mind.

Thank you for your attention. Let me answer both questions. The part I replaced is the central heating resistance, which is in the form of a half moon. I bought the piece from aliexpress. I wonder if there is another piece that controls the speed of this fan ..

It may be due to the fact that it is not original, there is also this piece, Hodja.

Thank you again. Do you have a digital air conditioning system for this piece? If there is, do you know where in the vehicle?

https://www.youtube.com/watch?v=ZWilUR6K7ds I think this link will work, hod.

Thank you for your help. I can look at the video in the evening. If I can reach a conclusion, I will share it here.

I watched the video. The heater resistance that I changed was still faulty. If the working current of the master drivers is low, the electrician may be burnt, he said. if possible, he advised me to buy a complete original heater engine. I will probably listen. thank you to everyone who helped.