Re: smeg d/washer
dont know this models timer very well but i would look at pcb to see what sort of power supply it uses. the early ones used a 1.5uF cap which is prone to failure and acts like a low battery fault. ie turn one thing on ok turn on two and timer crashes (see stick above on pcb repairs )
also early models use to throw up fault when the soap draw solenoid was faulty dont know if this fault still causes probs on the later one
finally look for earth leaks causing all sorts of probs on machines these days
Dave