Most no-cool and no-heat calls start with something small: a clogged filter, a weak capacitor, a dirty coil or flame sensor. Twice-a-year HVAC maintenance catches those problems before the first heat wave or cold snap.
When to Schedule
- Spring (March to April): an AC tune-up before the first 90-degree week.
- Fall (October to November): a furnace check before the first cold night.
What’s Included in an AC Tune-Up
- Clean or inspect the outdoor condenser coil
- Check refrigerant pressures and temperature drop
- Test capacitors, contactors and fan motors
- Flush the condensate drain line
- Check the thermostat and electrical connections
- Replace or check the air filter
What’s Included in a Furnace Check
- Clean and test the flame sensor and ignitor
- Inspect burners and the heat exchanger
- Test safety and limit switches
- Check gas pressure and venting
- Inspect the blower and belts
- Replace or check the air filter
Why It’s Worth It
A clean, adjusted system uses less electricity and gas, runs more quietly and lasts longer. Many equipment warranties also expect regular professional maintenance, so keep your service records.
Between Visits
Check your filter monthly in summer, keep 2 feet of clear space around the outdoor unit, and keep supply vents and returns open. If something does fail, see AC repair or furnace repair.
Why Maintenance Matters More in North Texas
In a mild climate, an air conditioner might run a few hours a day for a couple of months. In Mansfield, it can run most of the day from May through September. That’s a heavy workload, and every part feels it. Capacitors weaken in the heat, coils collect grass and pollen, and drain lines grow algae in the humidity.
Winter brings the opposite problem. A furnace that sits idle for most of the year collects dust on its burners and flame sensor, then has to start reliably on the first cold night. A fall check is the best way to make sure it does.
What Maintenance Can Catch Early
These are the problems we most often find during tune-ups, usually before the homeowner has noticed anything:
- Weak capacitors: still working, but close to failing. Replacing one during a tune-up avoids a no-cool call in July.
- Dirty condenser coils: they make the system run longer and raise your electric bill.
- Clogged condensate drains: caught before they overflow or shut the AC off.
- Low refrigerant: a sign of a slow leak that’s easier to fix early.
- Worn contactors and loose wiring: small electrical issues that can stop a system or damage the compressor.
- Dirty flame sensors: the top cause of furnaces that light and then shut off.
- Cracked ignitors and heat exchanger wear: found before they leave you without heat or create a safety risk.
Maintenance and Your Energy Bills
Dirt and wear make a system work harder for the same result. A dirty coil, a clogged filter or low refrigerant can each push run times and energy use up. Keeping the system clean and adjusted helps it run as efficiently as it was designed to. The savings depend on how neglected the system was, but a cleaner, well-adjusted system almost always costs less to run than a neglected one.
Maintenance and Your Warranty
Many manufacturers require regular professional maintenance to keep a warranty valid. If a major part fails, you may be asked for service records. Keep the paperwork from each visit. We note what we checked and found so you have a clear record of your system’s care.
How Long Does a Tune-Up Take?
Most AC tune-ups and furnace checks take about an hour per system. If we find a problem, we explain it and give you a price before doing any repair. You decide whether to fix it now or plan for it later.
What You Can Do Between Visits
- Change the filter. Check it monthly and replace it every 1 to 3 months, or monthly during peak summer and if you have pets.
- Keep the outdoor unit clear. Trim plants back 2 feet and keep grass clippings and leaves away from the coil.
- Keep vents open. Closing vents in unused rooms raises pressure in the ducts and can reduce efficiency.
- Watch the drain. If you see water around the indoor unit, call before it overflows.
- Listen for changes. New noises, smells or longer run times are worth a call.
HVAC Maintenance FAQ
How often should I get HVAC maintenance? Twice a year: the AC in spring and the furnace in fall.
Can maintenance prevent every breakdown? No, but it catches the worn parts and dirt behind most of them.
Is maintenance worth it on a new system? Yes. It keeps a new system efficient and protects its warranty.
What’s the difference between a tune-up and a repair? A tune-up is preventive: cleaning, testing and adjusting a working system. A repair fixes something that has already failed.
Do heat pumps need maintenance twice a year? Yes. A heat pump works in both summer and winter, so it benefits from a spring and fall visit.
Can I do HVAC maintenance myself? You can change filters, clear the outdoor unit and keep vents open. Electrical testing, refrigerant checks and burner cleaning should be left to a technician.
What if you find a problem during maintenance? We explain what we found and give you the price. Nothing is repaired without your approval.
Ready for a tune-up? Call (682) 392-2998 or book HVAC maintenance online.