My girlfriends heaters have stopped working air con too.
you put them on and the dial where it shows the temperature and fan speed comes on just no air hot or cold comes out of the blowers. ive checked all the fuses and all are ok.
anyone ever had this before? any help would be much appreciated cheers as its freezing in there compared to normal lol
found out it was the heater resistor. have now replaced this and there working again.
need to find out what the chip is on there so i can replace it as some bloke on clio sport said you could fix them but he never got back to my pm. cheers