This thread is totally useless because the reason why there is not hot water is because there is no element to heat up the water.
It relies on the hot water tanks' water temperature to even dissolve the soap but as the reduced amount of water gets in the cold aluminum interior and cold dishes, the water, guess what... gets COLD!!!
A stupid system that is supposed to reduce power needs for the machine (Energy Star garbage) but you'll have to clean it twice for a decent result!
Two advices : DO NOT BUY EnergyStar products, and stay away from aluminum interior machines.