Thanks Airkool.
I have checked the heating wiring and removed and reinserted all the wiring connectors on the PCB. I couldn't see anything wrong. However, when I used the machine this morning on a 40C wash it appeared to heat the water during the first cycle (the door glass was hot), but subsequent fills were all cold again. I used it again on a 30C wash, but it was cold from the start again. Hmm. :O/
Mikko, January 2011