It can be used for all cycles except Rinse. When Air Dry is selected, the cycle time will be shortened, and the dishwasher will operate in residual heat drying mode with the door opening automatically at the end of the cycle.
It can be used for all cycles except Machine Clean and Rinse. When Heat Dry is selected, the time will be extended and the temperature of the final rinse will be increased to help improve the drying effect.
When neither Air Dry nor Heat Dry is selected (indicator lights off), the dishwasher runs the Residual Heat mode, and the door will not open automatically.