What is a common effect of overcharging an A/C unit with refrigerant?

Overcharging an A/C unit with refrigerant leads to high-pressure levels in the system. When the refrigerant is added beyond the manufacturer's specifications, it doesn't allow for the proper heat exchange processes to occur. This surplus of refrigerant causes the pressure within the system to rise significantly, which can disrupt the normal operation of the compressor and other components.

High-pressure conditions can lead to a range of problems, such as increased wear and tear on parts, potential compressor failure, and reduced overall efficiency. The system may also struggle to maintain the desired temperature, often resulting in inadequate cooling performance or even overheating. These consequences highlight the importance of maintaining the correct refrigerant charge in an A/C system for safe and effective operation.