A fall heating tune-up tells you whether your furnace or heat pump is ready for winter. A gas furnace's burners sit idle for months between the last cold snap in spring and the first real test in November, and a heat pump has been running all summer in cooling mode. Either way, wear builds up in ways that aren't visible until the system runs under heating load. Capacitors weaken. Igniters develop cracks. Contactors pit. Flame sensors get coated. None of this shows up until you need heat and the system either can't deliver or delivers it poorly.
A fall tune-up finds these problems in September or October, when the fix can be scheduled, instead of in December, when it's an emergency.
The Carbon Monoxide Check You Can't Skip
Cracked heat exchangers and failed venting in gas furnaces can let carbon monoxide into a home. CO is odorless and invisible. A cracked heat exchanger can leak combustion gases, including carbon monoxide, into your home's air supply. The furnace runs, the house warms up, and nobody notices anything wrong.
Our fall tune-up includes a combustion analysis and carbon monoxide testing. If anything looks off, we inspect the heat exchanger with a camera and check all venting connections. This is the most important safety check in the entire tune-up, and it's also a good reminder to test the CO alarms in your home.
The Triangle's first freeze typically arrives between late October and mid-November. That first cold night is when a lot of furnaces fire up for the first time in months. If yours has a cracked heat exchanger, that's when CO can start entering your living space.
What Our Techs Check: The Full Fall Checklist
Gas Furnace Inspection
- Combustion analysis and CO testing
- Heat exchanger visual and camera inspection
- Burner cleaning and flame pattern check
- Igniter inspection (hot surface or spark)
- Flame sensor cleaning: a common cause of nuisance shutdowns
- Gas pressure measurement at the manifold
- Blower motor amp draw and operation
- Capacitor testing
- All safety controls: high-limit switch, pressure switch, rollout switch
- Thermostat operation and calibration
- Air filter replacement
- Flue pipe and venting inspection
- Return and supply airflow check
Heat Pump Heating Inspection
- Refrigerant charge measurement
- Reversing valve operation: confirms it switches to heating mode
- Defrost control board and cycle testing
- Auxiliary/emergency heat strip verification
- Outdoor coil cleaning
- Indoor coil inspection
- Blower motor and capacitor testing
- Contactor inspection
- Thermostat operation in heating mode
- Air filter replacement
- Electrical connection tightening
- Drainage check at the outdoor unit (defrost cycles melt ice off the outdoor coil all winter)
The September-October Scheduling Window
We push September and October scheduling for practical reasons. During these months, our techs aren't juggling emergency calls. Your tune-up gets unhurried, thorough attention. If we find something that needs repair, we can usually schedule the follow-up within days.
By November, everything changes. Emergency calls dominate the schedule. A tune-up that reveals a needed repair might mean waiting a week for the part and another week for the return visit. Meanwhile, you're running a system with a known issue through the coldest months.
What Homeowners Miss on DIY Checks
Some homeowners change their filter and call it done. That's better than nothing, but a filter change covers a small part of what a professional tune-up does. Here's what you can't check yourself:
You can't measure combustion gas levels without an analyzer. You can't test refrigerant charge without gauges. You can't measure amp draw without a clamp meter. You can't see inside a heat exchanger without a scope. You can't verify gas pressure without a manometer. Those tools are how a tech finds problems before they become failures or safety hazards.
What a Tune-Up Saves
A heating system that's dirty, low on refrigerant, or out of adjustment uses more energy to deliver the same heat, and that shows up on your electric or gas bill all winter.
Equipment lifespan matters too. Regular maintenance helps a system reach the long end of its expected lifespan. A premature replacement costs $5,000-12,000. Annual tune-ups at $49 each total under $1,000 over a system's lifetime.
$49 Fall Tune-Up
Our fall heating tune-up is $49 and covers everything listed above for either system type. We'll make sure your furnace or heat pump is safe, efficient, and ready before the first freeze. If everything checks out clean, you'll know it. If something needs attention, you'll know that too, with a clear explanation and a written quote, no pressure. Schedule in September or October for same-day availability in most cases.
