Corrosion resistance in heat pump and laundry appliances

A heat pump appliance comprising:

• a cabinet defining an air path therethrough;
• a sealed thermodynamic assembly mounted within the cabinet, the sealed thermodynamic assembly comprising a fluid compressor, an evaporator, and a condenser disposed along the air path;
• a blower fan mounted within the cabinet to motivate an airflow across the condenser;
• a temperature sensor mounted to the evaporator to detect temperature at the evaporator;
• and
• a controller in operative communication with the fluid compressor, the blower fan, and the temperature sensor, the controller being configured to direct a drying operation comprising:
• activating the fluid compressor to motivate a refrigerant through the sealed thermodynamic assembly,
• activating the blower fan to motivate the airflow across the condenser,
• directing the fluid compressor to an inactive state following activating the blower fan,
• detecting an evaporator temperature at the temperature sensor while the fluid compressor is in the inactive state following activating the blower fan, and
• adjusting activation of the blower fan based on the evaporator temperature.