Which of the following would NOT fall under the EPA definition of "major maintenance, service, or repair"?

The definition of "major maintenance, service, or repair" from the Environmental Protection Agency (EPA) typically refers to significant actions that could affect the environment or alter the operational capacity of an HVAC system. Replacing an oil filter is generally considered routine maintenance rather than a major repair or service. This task is relatively simple and does not significantly impact the overall function or efficiency of the system in a way that would concern regulatory standards.

On the other hand, replacing major components such as the compressor, re-tubing the heat exchanger (condenser), or replacing the fin and tube forced air evaporator coil involves substantial intervention. Such actions affect the refrigerant flow, system efficiency, and regulatory compliance under the Clean Air Act, making them classified as major maintenance. These activities typically require attention to environmental regulations surrounding refrigerant handling and disposal, highlighting their significance compared to routine maintenance tasks like oil filter replacement.