What is a major risk of overcharging an A/C system with refrigerant?

Overcharging an A/C system with refrigerant primarily leads to high pressure within the system, which can result in component failure. When there is too much refrigerant, it can create excessive pressure in the condenser and the evaporator coils. This heightened pressure can stress various components such as the compressor, which is critical in circulating the refrigerant. If the pressure becomes too high, it can cause the compressor to fail or even lead to leaks in the refrigerant lines or other vital components.

This risk is significant because once components start to fail due to pressure issues, it can lead to costly repairs and downtime for the cooling system. Addressing high pressure due to overcharging is crucial for maintaining the HVAC system’s overall health, ensuring reliable operation and longevity.