Hi all, My wife's Galaxy has developed a few problems: 1) The heater control is only blowing out hot air even when set to cold - only noticeable yesterday in the hot weather!! 2) None of the heater settings change - switching from Windscreen/feet to face only makes no difference....heat constantly comes from dash blowers. 3) Auxillary heaters, A/C, Air flow buttons are non functional, so we cannot use those functions. 4) None of the auxillary buttons illuminate (nor do the dials). Fan speed controls work fine (1 through to 4). Is this a fuse issue? If so, which fuses should I check? Thanks.