Hi guys as you may know from a previous thread i had the car at the auto electrician and had the blend door motor and flap changed on my aircon. My car is working ok with the temperature of air coming out but sometimes has a fit and works erratically in auto mode changing air to all different areas of the car. When i reset the unit E3 appears. The auto elec could not explain why this is occuring. Any ideas? sensor replaced like 3 times and connections are ok.