hi all, fortunately volvo's are fairly reliable, so i haven't had to bother you guys for some years now, and you have come through for me in the past, so here's hoping, i had the air con on a few weeks back, and it just stopped, i checked the fault code and it was 4-1-9, faulty diagnostic signal from blower fan power stage, anybody had this problem before, as i don't even know where to find a/c relay or in fact anything asociated with a/c, but code will not reset, so i assume fault is still present, thanks in advance joe