What is not required to be serviced annually?

• A. Filters
• B. Fans
• C. Refrigerant charge
• D. Compressors

Answer: (D)

Annual maintenance focuses on parts you directly service to keep the system delivering proper airflow and correct refrigerant balance. Filters are handled because clean filters maintain air quality and efficiency. Fans are inspected and cleaned, and any worn belts or bearings are addressed so air moves efficiently. The refrigerant charge is checked and adjusted if needed to ensure the system meets its operating specifications.

The compressor, however, is not something you routinely service every year. It’s a major mechanical component whose major issues aren’t resolved by regular maintenance tasks; problems with the compressor are typically diagnosed and repaired when they arise, rather than as a scheduled annual service item.