Preventing refrigerant charge issues requires regular maintenance, inspections, and adherence to proper installation and charging procedures. Some best practices include ensuring the system is properly evacuated and charged during installation, performing regular leak checks, and monitoring system performance data. Additionally, using the correct type and amount of refrigerant, as specified by the manufacturer, is crucial. It is also essential to follow proper procedures for adding or removing refrigerant, and to ensure that all system components are compatible and functioning correctly.