remove the top by removing a couple of self tapping screws located at the top  rear of machine ,then slide the top rearward  and lift off.
NOTE
 programmers are very reliable things , you may have a fault on machine this would be  indicated by the(dial spinning round) when it gets to the problem and the program CANNOT continue ,ie fill with water, heat up  to temp, wash, drain out, rinse, drain, spin.
                
 wirecutterman
                
 July 2009