It does'nt take in hot water on the initial fill, it only takes hot water on washes 2 & 3 after the clothes have soaked up the first fill ( which is in 2 stages ) You must have you water temp set as well, if you leave it on the star setting it will wash in cold water.
It will only wash in hot water, all the rinse are in cold & yes you were told correctly if its not heating it will NOT complete the wash.
taff, January 2005