Dishwasher and method for controlling same

A dishwasher comprising:

• a tub forming a washing chamber;
• an input module including:
• a first button for receiving a first user input for selecting a first washing course,
• a second button for receiving a second user input for selecting a second washing course, and
• a third button for receiving a third user input for selecting a hot air drying option;
• a drying device including:
• a heater to heat air, and
• a fan that is operable to cause air heated by the heater to discharge to the washing chamber through an outlet, and
• at least one processor configured to:
• operate the dishwasher to perform a first washing course based on receiving the first user input;
• operate the dishwasher to perform a second washing course based on receiving the second user input;
• and
• operate the dishwasher to perform a drying cycle after one of the first or the second washing course based on the hot air drying option being selected by the third user input,
• wherein the at least one processor is further configured to operate the fan based on a start of a drying cycle and to turn on the heater based on a first predetermined time being elapsed after the start of the drying cycle.