What might indicate a refrigerant leak in an HVAC system?

A refrigerant leak in an HVAC system is often indicated by ice build-up on the evaporator coil or reduced cooling performance. When there is insufficient refrigerant due to a leak, the evaporator coil may not be able to absorb heat effectively, which can lead to a drop in cooling performance. Furthermore, as the pressure in the system lowers, the temperature in the evaporator coil may drop significantly enough to cause moisture in the air to freeze, resulting in ice formation.

This combination of issues is a clear sign that the system is not operating correctly and suggests that refrigerant levels are inadequate, which could necessitate investigation and repair of potential leaks. Addressing these symptoms promptly is crucial to maintain effective cooling and prevent further damage to the HVAC system.