Cooking appliance and method for controlling the same

A cooking appliance comprising:

• a display;
• a main body configured to have a cooking compartment;
• a cooking compartment heater configured to provide heat to the cooking compartment;
• a water supplier configured to store water;
• a sensor configured to detect an amount of the stored water in the water supplier;
• a pump assembly configured to transfer the stored water from the water supplier to the cooking compartment;
• and
• a controller configured to determine whether a first predetermined amount of the stored water is stored in the water supplier in response to receiving a command to start a cleaning operation, control the cooking compartment heater to heat the cooking compartment to a first target temperature for a predetermined heating time in response to determining that the first predetermined amount of the stored water is stored in the water supplier, control the pump assembly to transfer a second predetermined amount of the stored water to the cooking compartment at least one of before and during the predetermined heating time to thereby provide steam to the cooking compartment, and control the display to display an indication of water shortage in the water supplier in response to determining that the first predetermined amount of water is not stored in the water supplier.