Report "Front loading Washing machine Bendix BIW 150 seem to work fine but after main cycle will not enter into rinse or drain modes. If I select them one y one i will rinse but ont drain. I have to undo the valve at the front and drain manually and it works fine. Could it be an issue with the drainage pipe of the machine being blocked as all household pumbing is clear? Any advice before I start to take the machine apart?"