- Understand the recommended frequency for professional check-ups, typically annually or biannually, and what tasks should be performed during maintenance, such as cleaning filters, checking refrigerant levels, and inspecting electrical components. 3.

- Understand the recommended frequency for professional check-ups, typically annually or biannually, and what tasks should be performed during maintenance, such as cleaning filters, checking refrigerant levels, and inspecting electrical components. 3. **What are the signs that my air conditioner might need repairs or replacement?
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