Samsung P801 waher. E6 after washing.
Tried to buy a new heater here in Canada but no longer available after 6 years old. Samsungs email reply was "We hope this doesnt inconveniece you but this part is no longer available"
After starting to analyse the problem i found the washer drain screen crammed with bobby pins and other stuff not allowing the water to drain. According to the service manual E6 is overheating,so i know the heater is working. After cleaning the screen it has been working great. I think that checking the screen every few months as the manual states is a GOOOOD idea.