Method for defrosting a primary evaporator and an auxiliary evaporator of a refrigerator appliance

A method of operating a refrigerator that includes:

• a cabinet defining a primary storage compartment,
• an auxiliary unit within the primary storage compartment that defines an auxiliary storage compartment,
• a primary cooling system for providing cooled air to the primary storage compartment, the primary cooling system comprising a primary evaporator, a primary airflow system for circulating air between the primary evaporator and primary storage compartment, and a primary heating element for defrosting the primary evaporator, and
• an auxiliary cooling system for providing cooled air to the auxiliary storage compartment, the auxiliary cooling system comprising an auxiliary evaporator, an auxiliary airflow system for circulating air between the auxiliary evaporator and auxiliary storage compartment, and an auxiliary heating element for defrosting the auxiliary evaporator,
• wherein the method includes:
• a main defrost operation that energizes the primary heating element;
• and
• an auxiliary defrost operation that energizes the auxiliary heating element.