While you wait for answers, we may have found some information which could help you.
Click here for Problem Ariston ProgramHow to reconnect the wires to the pressure switch for ariston ls 603?
Power light " ON ", but no response ?
Ariston LSI 61?
Ariston Dishwasher door seal?
Ariston dishwasher pump nonstoop + error code AL01?
ariston afa 350 x dishwasher?