There’s a stretch every fall in Germantown where the mornings start to feel genuinely crisp, even though the afternoons can still climb back into the seventies. It’s a nice change of pace after another humid Memphis summer, but it’s also the point where a lot of homeowners forget one simple fact. Somewhere in the coming weeks, that furnace sitting quietly in the attic or the closet is going to get switched on for the first time in months, and there’s no guarantee it’s going to fire up without a hitch.
We’ve handled more than a few “the heat won’t come on” calls over the years, usually on the first genuinely cold night of the season when everyone in Germantown decides to flip their thermostat over to heat at the same time. Most of those situations could have been avoided with a quick check earlier in the fall. Here’s what we recommend before that first cold snap actually hits.
Why Fall Is the Best Time to Check Your Furnace
A furnace that’s been sitting idle since March has had months to collect dust, and dust is not a friend to gas burners, blower motors, or heat exchangers. Getting a system checked in October instead of waiting until the temperature drops means a technician has time to actually order a part if something needs replacing, rather than scrambling to find one during the first cold week when every HVAC company in Germantown is booked solid. It also means you’re not stuck without heat while you wait for an appointment to open up.
There’s a financial angle here too. A furnace that starts the season running efficiently uses less gas or electricity to heat the same space compared to one that’s been neglected. With utility costs having ticked up across the Memphis area over the past couple of years, a system that’s actually running the way it’s supposed to makes a real difference on the monthly bill once winter settles in.
What Happens When a Furnace Sits Unused All Summer
During the warmer months, plenty of things can happen to a furnace without anyone noticing. Dust and debris settle into the burner assembly. Small rodents or insects occasionally find their way into unused ductwork or around the unit itself. Belts and moving parts can develop wear even when they’re not being used, simply from sitting still and drying out over time. None of this is necessarily obvious just by looking at the unit, which is exactly why a hands on inspection matters more than a quick glance.
The Most Common Fall Startup Problems
Ignition failures are one of the most frequent issues we see, usually caused by a dirty flame sensor or a pilot assembly that’s gotten dusty over the summer. Clogged filters are another big one, since a filter that hasn’t been changed since spring can restrict airflow so much that the system overheats and shuts itself off as a safety measure. Thermostat issues also show up more than people expect, especially in homes where the thermostat hasn’t been touched since it was switched to cooling months earlier.
A Simple Pre Winter Checklist
You don’t need to be an HVAC technician to catch a few of the basics yourself before calling in a professional. Start by replacing the air filter if it hasn’t been swapped out in the last three months. Take a look around the outdoor unit and clear away any leaves, sticks, or debris that built up over the summer. Test the thermostat by switching it over to heat mode on a mild day and letting it run for ten or fifteen minutes to confirm the system responds and actually produces warm air.
If you notice anything unusual during that quick test, a strange smell, a weak flow of air, or a system that simply won’t turn on, that’s the point to call in a professional rather than trying to troubleshoot it further yourself. Gas furnaces in particular involve components that really should be handled by a trained technician.
Signs Your Heating System Needs a Look Now
A few red flags are worth acting on immediately rather than waiting for the weather to force the issue. A burning smell the first time you turn the heat on is usually just dust burning off and tends to clear up on its own within an hour, but if the smell lingers or smells more like plastic than dust, that’s worth a call. Strange banging or popping noises when the system starts up can point to loose ductwork or a component that’s expanded and contracted unevenly over the summer. Uneven heating between rooms often traces back to duct issues or a system that’s simply undersized for the home.
If your system is more than twelve to fifteen years old, this is also a good time to start thinking honestly about whether repair or replacement makes more financial sense heading into another winter. Older systems tend to need more frequent repairs, and those costs add up quickly compared to the long term savings of a newer, more efficient furnace.
What Preventative Maintenance Actually Covers
A proper fall maintenance visit goes well beyond just glancing at the unit. Our technicians check the heat exchanger for cracks, since a cracked heat exchanger on a gas furnace can allow carbon monoxide to leak into the home, which is a genuine safety issue rather than just a comfort one. We test the ignition system, inspect the blower motor and belts, check gas pressure and burner combustion, and confirm the thermostat is communicating properly with the system. We also clean components that tend to collect dust over months of sitting unused, since a clean system runs more efficiently and puts less strain on itself.
Homeowners on one of our preventative maintenance agreements typically get this done automatically each fall and spring, which takes the guesswork out of remembering to schedule it yourself. It also tends to catch small problems, a worn belt, a slightly low refrigerant charge, a dirty sensor, long before they turn into a no heat situation on a thirty degree night.
Don’t Overlook the Thermostat Itself
It’s easy to focus entirely on the furnace and forget that the thermostat is really the brain of the whole heating system. If yours is more than eight or ten years old, or if it’s a basic model that’s never been particularly reliable, fall is a good time to consider an upgrade. Newer programmable and smart thermostats let you set different temperatures for different times of day automatically, which can genuinely lower your heating costs over the course of a Germantown winter without you having to think about it constantly. A furnace that’s mechanically perfect but paired with a thermostat that’s misreading the temperature by a few degrees will still leave a home feeling either too warm or too cold, and a lot of homeowners chase the wrong problem for weeks before realizing the thermostat was the actual culprit all along.
Simple Thermostat Checks Before Winter
Confirm the batteries are fresh if your thermostat uses them, since a low battery can cause erratic behavior that looks a lot like a furnace problem. Check that the display is reading a temperature that matches how the room actually feels, using a separate thermometer if you want to double check. And if you’ve got a programmable model, take a few minutes to actually set up a fall and winter schedule rather than leaving it on a single constant setting, since scheduling lower temperatures overnight or while the house is empty during the day is one of the easiest ways to cut heating costs without sacrificing comfort when it matters.
What a Professional Fall Visit Looks Like From Start to Finish
For homeowners who haven’t had a maintenance visit before, it helps to know what to actually expect. A technician typically starts by asking about any issues you’ve noticed with the system over the past year, then moves into a hands on inspection that covers the burner assembly, heat exchanger, blower motor, belts, electrical connections, and gas pressure if it’s a gas furnace. They’ll also check the filter, inspect ductwork connections near the unit for obvious leaks, and test the thermostat’s communication with the system.
Most fall maintenance visits take somewhere between forty five minutes and an hour and a half depending on the system and whether anything unexpected turns up along the way. At the end of the visit, you should get a clear rundown of what was checked, anything that needs attention now versus something to keep an eye on, and an honest answer if a repair is actually needed rather than just recommended as an upsell.
Getting Ahead of the Rush
Every year without fail, the first genuinely cold week in Germantown brings a wave of calls from homeowners whose furnace either won’t turn on or is blowing cold air. Getting your system checked now, while the weather is still mild, means you’re not competing with half the neighborhood for an appointment. It also means if something does need to be repaired, there’s time to handle it properly instead of rushing a fix just to get heat back on that same night.
If it’s been a while since your furnace had a real inspection, now is the time to get it scheduled. Call Benny James Service Company at (901) 763-3600 and we’ll get a technician out to your Germantown home before the temperature drops for good.