
As temperatures rise, your air conditioning system becomes essential for keeping your Collinsville, IL home cool and comfortable. However, if your AC isn’t properly maintained, it can struggle to keep up with demand, leading to higher energy bills, frequent breakdowns, and poor cooling performance. To avoid these issues, here are some key tips to keep your AC running at its best all summer long.
Change Your Air Filters Regularly
One of the simplest yet most important maintenance tasks is changing your air filter regularly. A clogged or dirty filter restricts airflow, forcing your AC to work harder to cool your home. This decreases efficiency while also driving up energy usage. Ideally, you should replace or clean your air filter every 1–3 months, depending on usage and whether you have pets or allergies.
Keep the Outdoor Unit Clean
Your AC’s outdoor unit (condenser) plays a crucial role in expelling heat from your Collinsville, IL home. If it’s covered in dirt, leaves, or debris, it won’t operate efficiently. Make sure to:
- Clear away any debris around the unit.
- Hose down the coils periodically to remove dust buildup.
- Trim plants and bushes at least two feet away from the unit to allow proper airflow.
Check and Seal Ductwork
Leaky or damaged ductwork can lead to significant energy loss, making your AC work harder than necessary. Inspect your ducts for leaks, gaps, or holes, especially in attics or crawl spaces. Sealing these leaks with duct tape or professional-grade sealant can improve airflow and reduce cooling costs.
Use a Programmable Thermostat
A programmable or smart thermostat helps regulate indoor temperatures more efficiently. Set your thermostat to a higher temperature when you’re away and lower it when you’re home. This prevents your AC from running constantly and reduces strain on the system. Ideally, keep your home around 78°F when occupied to balance comfort and energy efficiency.
Keep Vents and Registers Clear
Blocked air vents can restrict airflow, causing uneven cooling and making your AC work harder. Make sure furniture, curtains, or rugs are not blocking any vents. Regularly vacuum dust from vents and registers to maintain proper air circulation.
Schedule Professional Maintenance
Annual maintenance from a qualified HVAC technician can keep your AC in top shape. A professional will inspect and clean vital components, check refrigerant levels, lubricate moving parts, and ensure everything is running efficiently. Routine maintenance can prevent unexpected breakdowns and extend the lifespan of your unit.

Avoid Excess Heat Indoors
Reducing heat buildup in your home helps your AC work more efficiently. Try these tips:
- Keep blinds or curtains shut during peak daytime heat.
- Use ceiling fans to circulate cool air.
- Limit the use of heat-generating appliances (like ovens and stoves) during peak hours.
Call Dixon Heating & Cooling today if you are looking for a company who can help you keep your AC working all summer long in your Collinsville, IL home.