Air con won't switch off!
Started car the other day after it had been stood for about a month, fired up fine, all lights extinguished to suggest a healthy car. Then I noticed no heating functions were working, all was fine when I last used the car, no amount of knob twiddling worked this time for anything. So I turned the ignition off then back on but without starting the engine and suddenly the air con was blowing in full defrost mode but I was unable to control it with any of the knobs.......just stuck flat out in defrost. Switched ignition back off and the darn thing was still blowing like that even with the key removed! In the end I had to pull the 30amp fuse for the air con to stop it, tried it again the next day with everything cold and it did exactly the same. I know you can programme various options through combinations of knob and ignition position but this seems right weird. Any ideas?