When autumn rolls around in the Ozarks, temperatures start dropping and furnaces kick back on for the first time in months. To make sure your system runs efficiently all season long and keeps your home comfortable when the first frost hits, follow this Fall HVAC Checklist.
A little preventive maintenance now can save you from breakdowns, high utility bills, and costly emergency repairs later. Here’s a step-by-step guide from the heating and cooling experts at Jon Wayne Heating & Air to get your system ready for fall.
1. Replace or Clean Your Air Filters
Your air filter is the first line of defense for your HVAC system. Over time, it traps dust, pollen, and pet dander — all of which restrict airflow and strain your furnace.
How to do it:
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Locate your system’s return air vent or furnace compartment.
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Check the filter’s size and replace it with a clean one that matches.
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If you have a reusable filter, wash and dry it before reinstalling.
Replace disposable filters every one to three months during peak heating season. A clean filter improves indoor air quality and keeps your system running efficiently.
2. Inspect Your Air Ducts
Dust and debris inside your ducts can reduce airflow and spread allergens throughout your home. Cracks or loose connections can also cause heat loss, making your furnace work harder.
How to do it:
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Remove vent covers and look for visible dust buildup or mold.
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Listen for rattling or whistling sounds when your system runs, which may signal air leaks.
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If you notice uneven heating or higher energy bills, schedule a professional duct inspection with Jon Wayne Heating & Air.
Professional duct cleaning can improve efficiency and extend your system’s lifespan, especially before a long winter of heavy use.
3. Test Your Thermostat
Before the chill sets in, make sure your thermostat is calibrated and responsive.
How to do it:
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Switch from “cool” to “heat” mode and set the temperature a few degrees higher than room temperature.
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Listen for your system to turn on promptly.
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If it doesn’t, or if your rooms don’t heat evenly, your thermostat may need recalibration or replacement.
Upgrade tip: Consider a programmable or smart thermostat to automatically adjust temperatures when you’re away. It can save energy without sacrificing comfort.
4. Clear and Clean Your Outdoor Unit
Your outdoor condenser unit (for heat pumps or AC systems) can collect leaves, twigs, and debris during the fall. Keeping it clear helps maintain proper airflow and efficiency.
How to do it:
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Turn off power to the unit at the disconnect switch or breaker.
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Gently remove debris from around the unit and clean the fins with a soft brush.
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Maintain at least two feet of clearance around the unit to allow for proper ventilation.
If your heat pump serves as your primary heating source, a quick pre-winter tune-up ensures it’s ready for the colder months ahead.
5. Check Your Furnace Burners and Flame
When your furnace ignites, the flame should burn steady and blue. A yellow or flickering flame may indicate dirt buildup or incomplete combustion, which can be dangerous.
How to do it:
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Remove the access panel and inspect the flame through the observation window.
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If it’s anything other than steady blue, schedule a service call immediately — it could mean your burners need cleaning or adjustment.
Safety first: Always let a licensed technician handle internal furnace components to avoid carbon monoxide risks.
6. Inspect the Blower Belt and Motor
Over time, belts can fray, and blower motors can lose lubrication. A noisy or squeaky furnace is a common sign that something’s off.
How to do it:
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Turn off the power and check for visible wear on the belt.
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Lightly lubricate the motor bearings if they’re not sealed.
For peace of mind, Jon Wayne’s team can include this check as part of your fall HVAC tune-up.
7. Make Sure Vents and Registers Are Clear
Blocked vents make your system work harder and heat your home unevenly.
How to do it:
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Move furniture, rugs, or curtains away from vents and registers.
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Vacuum any dust buildup from grilles to improve air circulation.
This simple task keeps your system running efficiently and ensures consistent comfort in every room.
8. Test Carbon Monoxide and Smoke Detectors
Fall is the perfect time to test safety devices that protect your home. Furnaces, especially gas ones, can produce carbon monoxide if not properly ventilated.
How to do it:
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Replace batteries in your smoke and CO detectors.
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Press the “test” button to make sure they’re working properly.
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If your CO detector is more than five years old, replace it.
9. Schedule a Professional HVAC Tune-Up
Even if everything looks good to you, having your system professionally inspected each fall is the best way to prevent surprises when winter arrives.
During a Jon Wayne Heating & Air fall tune-up, our certified technicians:
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Inspect your heat exchanger for cracks
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Check your blower components
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Tighten electrical connections
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Test system safety controls
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Verify proper gas pressure and ignition
A seasonal inspection ensures your system is safe, efficient, and ready to handle whatever the Midwest weather brings.
10. Seal Air Leaks and Check Insulation
Lastly, don’t let your hard-earned warm air escape. Drafty windows, doors, and poorly insulated attics can make your furnace work overtime.
How to do it:
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Seal gaps with weatherstripping or caulk.
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Add insulation to attics and crawl spaces.
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Check around recessed lights and attic hatches for leaks.
Improving insulation keeps your home comfortable and reduces your monthly heating bills.
Stay Cozy and Confident This Fall
Following this Jon Wayne Heating & Air Fall HVAC Checklist will help your system run smoothly, safely, and efficiently all season long. Regular maintenance not only saves money but also extends the life of your HVAC system, giving you peace of mind when the temperatures drop.
If you’d rather leave the maintenance to the professionals, we’re here to help.
Contact Jon Wayne Heating & Air today to schedule your fall HVAC tune-up or inspection. Our team proudly serves Springfield, Mount Vernon, and surrounding areas with trusted service and guaranteed comfort.
