How can I fix my Beko WM7335W washing machine?

Hi,

My washing machine settings on my BEKO WM7335W are wrong, e.g. when I set the dial on the machine to drain and spin, the timer display shows the amount of minutes needed for a cold woollen wash (and the machine will do a cold wash if I press the start button) and when I set the dial to cottons 40 degrees the timer displays the amount of minutes needed for cottons 30 degrees. I have similar problems with other settings and no matter how much I turn the dial I can't seem to get the 12 minutes needed for the machine just to do a drain and spin. Does anyone know how I might be able to fix this problem please?