Hi I am facing issuees with my AEG 7000 kombi washing machine. It stops many times during the washing cycle with error code E31 and it cannot be restarted. I have to manually drain the water and open the door. It works for one week or more and then it happens again. According to AEG manual this shod be a problem in the pressure switch but if this was the case it shouldn't wotk after draining and open the door manually. Please for your help