We ran a test:

Turned the unit on and ran a normal wash.
Halfway thru the wash/rinse cycle we opened the door slightly.
Steam can out and it was obvious that it was washing properly.
We opened the door once again at the end of the wash rinse cycle and onece again steam came out.
The dishes were warm but not hot.
Still wet at the end of the "dry" cycle.
Could it be that the heater is not getting hot enough?

Thanks for your input.