If you still have the letters then it is not too difficult. `A` is generally a prewash. `B` is the hottest wash at 90 degrees `C` is the normal wash at 60 degrees and so forth down to probably `E` which would be drain and spin . The other remaining letters will refer to 40 degree washes for wool and synthetics etc. Of course you could always download a users manual from the manufacturers. You will need the model no. ,which more than likely, will be on the top right of the fascia.
John Livewire, August 2010