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Charleston, SC
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Cleaning coils, checking refrigerant, tightening electrical connections, testing controls, and checking airflow. Takes about an hour.
Once a year, ideally in the spring before cooling season starts.
A dirty or struggling system uses more power. A tune-up restores efficiency — how much it saves depends on the system's condition.
Yes — it can extend the unit's life and catch problems before they become breakdowns. It also tells you honestly whether replacement is smarter.