Recent content by vmoreno3049

Update: checked the output pin on block B that powers the blower resistor and saw the voltage oscillate from 1v (blower on) down to 0.35v (blower shuts off). I ordered a replacement, 8P0820043BN XHA Climate Control Unit. However, when I received it and installed it, all the buttons work...

Hi, I have a 2012 A3 that is having issues with the AC. When I turn on the car an the ambient temp is hot outside, the blower does not engage and the AC Control Unit becomes unresponsive (the auto button stay on, changing the temp higher or lower will cause the display to turn off and only comes...