I’ve got a Hotpoint DF42 dishwasher that keeps displaying E11.
I believe that it is a heater timeout.
I’ve checked the following but no luck:-
Heater element (Reads about 19 Ohms)
Relay contacts on PCB.
It appears that the relay for the heating element isn’t being energised, I’ve measured the voltage across the relay coil when the machine is running.
I was wondering whether it could be the thermostat that is mounted on the rear of the door next to the PCB. I’ve measured it with my multimeter and it reads 28KOhms when cold.
Any help would be greatly appreciated as I can’t afford a new dishwasher!!
Cheers