Mine starting flashing ages ago! seat said could be to do with temp sensor, then about a day after i went to see them the temp sensor when mad! said it was 30 degs all time, when it clearly wasnt, then it totally packer in!
changed the sensor, had to wire in new one! had rusted thru the wiring and the sensor! But the a/c still doesnt work.
Think the gas has gone, might have a leak somewhere i think!
gonna be expensive!!