First post here, previously on VOC.
Currently trying to diagnose why I have no heat at all, and I mean it is stone cold. But that will probably be another post.
While trying to solve the above, I have come across several stories of the CCM being allegedly damaged by incorrectly reconnecting the battery. I do this regularly to top up the battery and just place the battery terminals back on with no key in. Having said that I now have a freezing car and when I press the CCM auto button, with heat selected, it switches on the dam air conditioning and makes the car even colder.