Fall HVAC Tune-Up: What to Check Before Winter in Illinois
Illinois homeowners typically start thinking about heating systems in late fall—often after temperatures dip and the first heating call reveals problems. A proactive HVAC tune-up before winter can reduce the odds of emergency repairs, help your system run more efficiently, and support healthier indoor air.
Start with performance and basic safety checks
Before adjusting anything, confirm your thermostat settings and verify the system can safely start and stop. Check that vents and returns are not blocked by furniture, rugs, or storage items. Then inspect visible components for signs of wear, damage, or unusual corrosion—especially around the furnace or air handler.
Also ensure your carbon monoxide (CO) detectors are working properly. A functioning CO alarm is one of the most important safety steps, particularly before the system runs harder during colder months.

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