Which of the following is NOT a primary component removed during a major repair?

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The key idea here is which parts of the refrigerant circuit are considered the main components you remove when doing a major repair. When a major repair is performed, the typical targets are the big three in the loop: the compressor, the condenser, and the evaporator. These are the primary components that are removed and replaced because they are the main devices that fail or wear out and they require disassembly of the system to access.

The filter drier, while important for removing moisture and protecting the system, isn’t treated as a primary component removed for a major repair. It’s a supporting part that you might replace if moisture or contamination is a concern, but it isn’t one of the major components that you remove to access the system’s core cooling loop. In practice, after a major repair, you’ll decide on replacing the drier based on contamination considerations, not because it’s a core part that was removed for the repair.