During extreme summer temperatures, your air conditioner works overtime to keep your home cool. However, excessive heat and continuous operation can cause your AC to overheat, leading to breakdowns, costly repairs, or even total system failure. To ensure efficient cooling and prevent your unit from overloading, follow these essential air conditioning maintenance tips.
- Clean or Replace the Air Filter
A dirty air filter restricts airflow, making your AC work harder than necessary. This increases the risk of overheating, especially during a heatwave. Check your filter every month and replace it if it’s clogged with dust and debris. A clean filter improves airflow, enhances cooling efficiency, and prevents unnecessary strain on the system.
- Keep the Condenser Coils Clean
The condenser coils in the outdoor unit release heat absorbed from your home. If they are covered in dirt, leaves, or debris, heat transfer becomes inefficient, causing the system to overheat. Gently clean the coils with a soft brush or hose to ensure proper airflow and heat dissipation.
- Check and Maintain the Refrigerant Levels
Low refrigerant levels reduce your AC’s cooling capacity and force the compressor to work harder, increasing the risk of overheating. If you notice weak cooling performance, warm air from vents, or ice buildup on the coils, have a professional check for leaks and recharge the refrigerant if needed.
- Ensure Proper Airflow Around the Outdoor Unit
Blocked airflow around the condenser unit can trap heat and cause overheating. Keep at least two feet of clearance around the outdoor unit by trimming nearby plants, removing debris, and ensuring there are no obstructions like fences or furniture restricting airflow.
- Avoid Setting the Thermostat Too Low
Setting your thermostat extremely low during a heatwave forces the AC to run continuously without enough breaks to cool down. Instead, set it to a reasonable temperature (around 75–78°F) and use ceiling fans to circulate air and maintain comfort without overloading the system.
- Give Your AC Breaks with a Programmable Thermostat
A programmable or smart thermostat can help prevent overheating by automatically adjusting temperatures when you’re not home. This allows the system to cycle off periodically, reducing strain and preventing excessive wear on components.
- Insulate and Seal Your Home
Proper insulation helps keep cool air inside and prevents heat from entering, reducing the workload on your AC. Check for gaps in windows, doors, and ducts, and seal any leaks with weather stripping or caulk to maintain indoor temperatures more efficiently.
- Reduce Internal Heat Sources
Appliances like ovens, stoves, and clothes dryers generate heat that can make your AC work harder. Minimize indoor heat by using these appliances during cooler hours or opting for alternatives like grilling outside or air-drying clothes. Switching to LED bulbs and keeping blinds or curtains closed during peak sunlight hours can also help.
- Schedule Regular Air Conditioning Maintenance
Routine air conditioning maintenance ensures your system is in peak condition before a heatwave hits. An HVAC technician can inspect for worn-out parts, clean internal components, and optimize performance to prevent overheating and unexpected breakdowns.
- Consider Shade or a Cooling Cover for the Outdoor Unit
Direct sunlight on the outdoor condenser can increase its temperature, making it work harder to release heat. Providing shade with an awning, tree, or a specialized AC cover can help reduce strain and improve efficiency. Just ensure there’s still adequate airflow around the unit.
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