hello, I noticed the following, where I am of the opinion that it can not be normal: during the heating operation in automatic mode (without air compressor) comes out of the middle nozzles as well as nothing at all, only in the furaum. back comes from the b column only slightly cold air, footroom warm. the fan wash is also very loud, because it blows permanently against the closed middle nozzles. in the hand mode everything seems to work normally, except for the b column, there comes again only cold air. that can not be normal, can it? Greet, heiko