A system and method for controlling a hot water wash cycle in a washing machine is provided. The method includes supplying water to the washing machine, and determining a water level in the washing machine. When the water level reaches a heating water level at which a heating unit is submerged, the heating unit is turned on to heat the water while water continues to be supplied to the washing machine. When the water level reaches a washing water level and the water in the washing machine is at a washing water temperature, the heating unit is turned off and a wash cycle associated with a selected washing condition may be initiated. By turning on the heating unit as soon as it is submerged, wash time may be reduced.