The dishwasher seems to be doing all it should, it fills (level seems ok), heats, drains etc, but it intermittently keeps on running, or the customer thinks it may possibly be restarting at the end of a programme. She also thinks it might be getting hotter than it should do. I watched it part way through a quick wash to the point where it moved into the rinse cycle, and all seemed to perform as it should. Oh for the days of mechanical timers when we could speed things up :). Possible thermistor fault?? Any help greatly appreciated. Thank you. Steve.