I have a bosch dishwasher model sgs3042 that is about 6 years old and is not filling up. I have looked at previous problems on here and most people say to check the water inlet hose and valve. I have done this and am confident that they are okay. People have also said that it might be to do with the float valve but this I am unable to locate. People say it should be near the front on the left but there is nothing. Some have said that there is a tray at the bottom and to unscrew the front and bottom panels and it could be in there but this is un accesible. Can anyone help or is it time for a new one?