My 59 plate Galaxy which I have recently purchased is only blowing air to the front, the dial does not alter the air flow direction, so I cannot properly keep the windscreen clear. Seems to be stuck on front, does not matter which way I point it (feet, windscreen etc). The rate of flow dial works fine however. Any ideas what the matter could be - I presume its a stuck motor which directs the air flow, but I have no idea where this would be located, and don't want to start pulling out the dash to find it Thanks in advance, Anthony