Aircon has been blowing warm and stuck on recirc unless I manually overide it. Had a gas fill done at KW (I know, but last time they did a decent job), took about 50 minutes. The lad came and told me it's not done anything, the compressor is kicking in but no cold air. I've had a look, there's nothing obvious and as they said the compressor and fan is kicking in. Has anyone else had a similar problem? 2003 2.4 car.