They have heating elements to heat the water - it's just a guess but your machine's element might be defective - the fault code E09 probably means No hot water - you do not say the make and model of your dishwasher.
On a Bosch machine E09 often means Heating Circuit Fault.
Mend it yourself or call an engineer in
Good luck...
June 2015
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
