Hi, I have a series 8 Bosch self cleaning condenser drier. Ive had loads of problems with it since it went out of warranty. The latest is that the machine keeps telling me the water container is full and won't go any longer than 6 minutes at a times. Ive taken the tray out and dried it completely. Ive also made sure all filters are clean. Ive spoken to Bosch and their advice is spend another £100 getting their engineer out who won't bring any parts with him on his first call?!? They also advised me to try changing the sensor myself but I have no idea how to do this!! Any help with this would be great!! Thanks!!!