Hi All, It's been a while and rather than creating a new thread, I thought I'd bring this one back to the top of the heap. The mushroomy smell is still there. And I've noticed, that the smell is only there when I turn on the cool. I don't seem to be able to smell it when I've got the HEAT on. So this is really driving me nuts ... If I take it to the garage, what are they likely to do? Is there something they can do to fully get rid of it?