According to the EPA, what constitutes a major repair?

• A. Replacement of the compressor
• B. Replacement of the evaporator
• C. Replacement of the condenser
• D. Replacement of any four key components

Answer: (D)

A major repair, as defined by the EPA, constitutes the replacement of any four key components in a system. This definition is critical for understanding the regulations surrounding refrigerant management and recovery. Key components often include the compressor, evaporator, condenser, expansion valve, and other significant system parts. When a substantial portion of these key components are replaced, it signifies a repair that can significantly impact the system's refrigerant charge and potentially its efficiency and performance.

Replacing multiple key components would involve a greater potential for refrigerant leakage and would require documented handling procedures to ensure compliance with environmental regulations. Understanding this definition is essential for technicians as it guides the necessary actions they must take when performing repairs, including how to manage refrigerants properly to minimize environmental impact.