- Recognizing early warning signs such as unusual noises, inefficient cooling, or increased energy bills can help in deciding whether to repair or replace a unit. 4. **What are the common mistakes to avoid during air conditioning installation?

- Recognizing early warning signs such as unusual noises, inefficient cooling, or increased energy bills can help in deciding whether to repair or replace a unit. 4. **What are the common mistakes to avoid during air conditioning installation?
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