Arçelik “Energy Free” washing machine interface was evaluated with expert analysis and usability problems were classified in terms of consistency , feedback and conformity to the users’ mental model regarding energy saving. Design recommendations were presented in the form of computer based animations.Arçelik “Energy Free” washing machine interface was evaluated with expert analysis and usability problems were classified in terms of consistency , feedback and conformity to the users’ mental model regarding energy saving. Design recommendations were presented in the form of computer based animations.