What should be done to prevent ice formation on the evaporator coil?

To prevent ice formation on the evaporator coil, ensuring sufficient airflow is essential. The evaporator coil requires a consistent and adequate flow of air to function properly. When airflow is restricted, it can cause a drop in temperature on the coil, leading to condensation that may freeze and accumulate as ice.

Adequate airflow allows the refrigerant to absorb heat from the indoor air effectively, maintaining a balanced temperature and moisture removal process. When the airflow is compromised, the coil can become excessively cold, resulting in moisture freezing on its surface.

Reductions in airflow, increases in refrigerant charge, or lowering the thermostat setting may inadvertently lead to conditions that promote ice formation rather than prevent it. Therefore, maintaining sufficient airflow is a crucial operational parameter for preventing ice buildup on the evaporator coil.