How do ice and frost negatively impact refrigeration systems?

Ice and frost can significantly hinder the operation of refrigeration systems by blocking airflow. When ice or frost accumulates on evaporator coils or in the air passages, it reduces the amount of air that can circulate through the system. This restriction can lead to overheating of the compressor, reduced cooling efficiency, and increased energy consumption. The buildup ultimately compromises the system's ability to maintain the desired temperature, potentially leading to full system failure if not addressed. Effective refrigeration relies on unobstructed airflow to transfer heat efficiently; therefore, any accumulation of ice or frost detracts from this essential function.