What could be a result of evaporator coil icing in an air conditioning system?

When the evaporator coil in an air conditioning system becomes iced over, it can lead to significant reductions in cooling performance. The evaporator coil is responsible for absorbing heat from the indoor air; when it is functioning correctly, the refrigerant inside the coil evaporates, drawing heat away from the air and cooling it down. However, if the coil becomes covered in ice, it impedes the airflow and effectively creates an insulating barrier that prevents heat transfer.

As a result, the refrigerant cannot absorb heat efficiently, which leads to a decrease in the overall cooling capacity of the system. In severe cases, the system may struggle to cool the indoor space adequately, leading to discomfort and potential system overheating, as the compressor may work harder to compensate for the lack of cooling. Recognizing and addressing ice buildup is crucial for maintaining optimal performance in air conditioning systems.