Winter is coming (eventually)
Fall Heating Checklist for Antioch, TN
Tennessee winters are mild, until the week they aren't. Run this checklist each September or October so your furnace or heat pump is ready before the first cold snap, not scrambling after it.
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The Direct Answer
Every fall: replace the filter, test the heat on a mild day, check carbon monoxide detectors, clear the area around the furnace, and book a professional heating tune-up before you need it. The single most important step is the early test run, discovering a dead furnace in October is a scheduling inconvenience; discovering it in January is an emergency.
DIY: Your Fall Checklist
- Change the air filter. Heating season means months of continuous airflow through that filter. Start clean.
- Test the heat early. On a cool fall morning, switch to heating and run it 15–20 minutes. Note any new noises, smells that don't fade, or rooms that stay cold.
- Check carbon monoxide detectors. Press the test button, replace batteries, and check the manufacture date, detectors expire every 5–7 years.
- Clear the furnace area. Remove boxes, paint cans, and clutter from around the furnace or air handler. Combustion appliances need clear space and clean air.
- Open vents and check returns. Same rule as summer: open vents, clear returns, no furniture blocking airflow.
- For heat pumps: clear the outdoor unit. Fall leaves pile up fast around condensers. Keep two feet of clearance so the defrost cycle can do its job.
- Check the thermostat. Confirm it switches to heat mode and holds temperature. If you use a programmable schedule, update it for winter routines.
Pro Tasks: What a Technician Handles
- Inspect the heat exchanger for cracks, the critical safety check on any gas furnace.
- Clean burners and check ignition. Dirty burners and weak ignitors cause most no-heat calls.
- Check gas connections and pressure for leaks and proper combustion.
- For heat pumps: test the defrost cycle, reversing valve, and auxiliary heat strips.
- Verify airflow and temperature rise across the system to confirm it's heating efficiently.
- Test safety controls, including limit switches and flame sensors.
Safety Note: Gas Smells Are Never "Normal"
A brief dusty smell on the first heat cycle is fine. A rotten-egg or sulfur smell is not, that's the odorant added to natural gas. If you smell it: don't flip switches, don't light anything, leave the house, and call your gas utility's emergency line from outside. Then call us at (615) 637-1254 once the utility clears the home.
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Your Questions, Answered
When should I get my furnace serviced in Antioch?
September or October, before you actually need heat. That way a cracked heat exchanger, weak ignitor, or dirty burners get found on your schedule, not during the first cold snap when every HVAC company is slammed.
Is it normal for my furnace to smell when I first turn it on?
A brief dusty or burning-dust smell on the first heat cycle of fall is normal, it's dust burning off the heat exchanger. It should fade within an hour. A persistent smell, especially anything like rotten eggs or strong gas odor, means turn the system off and call a professional immediately.
Do heat pumps need a fall checkup too?
Yes. Heat pumps work year-round, so they need both a spring and a fall visit. The fall checkup focuses on the defrost cycle, reversing valve, auxiliary heat strips, and refrigerant charge, the parts that keep you warm when temperatures drop.
How do I know if my carbon monoxide detectors are working?
Press the test button monthly and replace batteries at least once a year, fall is the natural reminder. Detectors themselves expire: check the manufacture date on the back and replace the unit every 5–7 years, or per the manufacturer's guidance.
What are signs my furnace needs repair, not just maintenance?
Yellow or flickering burner flames (should be blue), frequent on-off cycling, cold spots despite long run times, new rattling or booming noises, and a yellow pilot light. Any of these warrant a service call before winter, not after.
Get Your Heating Checked Before You Need It
Fall slots fill up once the temperature drops. Book early.
CALL NOW · (615) 637-1254