Error memory climate

Hello, there's another problem. I recently bought a 95er 4.2 and recently expanded the climate control panel because all three bulbs did not glow. Unfortunately, however, the pears were healthy and probably somewhere a mistake in the control panel. When it was developed, I certainly also started the ignition and then installed it again. Then I read out the error memory with VAG-Com and suddenly there were more than 10 errors under air conditioning. They weren't there before. Some fan and sensors and behind everyone is something with not voltage or disconnect...... if I want to delete the error memory then it does not go to zero at all but finds again some errors. Only sometimes there are 0 mistakes, but if I ask him again, there are some mistakes right away. Sometimes only 4 sometimes 19 mistakes. Then I bought a new (used) control panel so that the lighting goes again and hoped that it would fix these errors at the same time, but was not like that. It's still the same. Do you have to re-register or reset the climate control somehow? Who knows advice?

Thank you very much
Carsten