In Texas, where summers are scorching and winters can bring sudden cold snaps, your HVAC system works harder than most. Yet many homeowners unknowingly make seasonal mistakes that reduce efficiency, increase energy bills, and lead to unexpected breakdowns.

By learning what to avoid, you can extend your system’s lifespan, keep energy costs under control, and ensure comfort year-round.

Spring Mistakes: Skipping Pre-Summer Prep

When spring arrives, many homeowners wait until the first heatwave to think about their AC. This delay often results in system stress and surprise breakdowns.

Common Mistakes:

• Not scheduling a professional tune-up before peak use 
• Forgetting to replace dirty air filters 
• Ignoring weak airflow or uneven cooling 

How to Avoid Them:

• Schedule maintenance in March or April before heavy use begins 
• Change air filters every 30–60 days 
• Test your AC early to catch issues before summer heat hits 

Learn more about avoiding breakdowns in our blog: Why Preventive AC Maintenance Saves You Money.

Summer Mistakes: Overworking the AC

Texas summers push air conditioners to their limits. Homeowners often make choices that unknowingly overwork the system.

Common Mistakes:

• Setting the thermostat too low (like 65°F) 
• Running the system nonstop without giving it a break 
• Neglecting shaded window coverings to block heat 
• Ignoring refrigerant leaks or strange noises 

How to Avoid Them:

• Keep thermostats at 76–78°F for balance between comfort and savings 
• Use ceiling fans to circulate cool air 
• Seal windows and doors to prevent cool air loss 
• Call for AC Repair Services at the first sign of trouble 

Fall Mistakes: Forgetting About Heating Systems

When cooler weather arrives, many Texas homeowners focus only on AC shutdowns and forget to prepare their heating systems.

Common Mistakes:

• Not testing the furnace or heat pump before the first cold front 
• Skipping duct cleaning after a dusty summer 
• Failing to schedule a fall inspection 

How to Avoid Them:

• Test your heating system in October to catch problems early 
• Consider professional Duct Cleaning Services for better airflow 
• Schedule a seasonal tune-up to ensure efficiency and safety 

Winter Mistakes: Misusing the Furnace

Though winters in Texas are mild compared to northern states, cold nights still put strain on furnaces. Improper use can shorten their lifespan and raise costs.

Common Mistakes:

• Blocking vents with furniture or rugs 
• Cranking the thermostat too high 
• Skipping filter replacements during heater use 
• Ignoring unusual smells or noises 

How to Avoid Them:

• Keep vents clear for proper airflow 
• Set the thermostat at a consistent 68–70°F 
• Replace filters monthly during heavy furnace use 
• Contact Heating Repair Services for any performance issues 

Year-Round Mistakes: Neglecting Routine Maintenance

Some mistakes aren’t seasonal—they happen all year long.

Common Mistakes:

• Ignoring regular filter changes 
• Delaying repairs when issues first appear 
• Forgetting thermostat calibration 
• Not enrolling in a preventive maintenance plan 

How to Avoid Them:

• Mark filter change dates on your calendar 
• Address minor problems before they become major 
• Upgrade to a smart thermostat for better control 
• Join a Preventive Maintenance Plan for scheduled inspections and priority service 

Conclusion

Seasonal HVAC mistakes may seem minor, but they add up to higher bills, unnecessary repairs, and shorter system life. With proper care, Texas homeowners can enjoy comfort year-round without the hidden costs.

👉 Schedule your Seasonal HVAC Maintenance with KAC Express today and protect your home from costly surprises.

FAQs 

Q1: How often should I schedule HVAC maintenance?
At least twice a year—once in spring before cooling season, and once in fall before heating season.

Q2: Can seasonal mistakes really shorten system lifespan?
Yes. Lack of maintenance can reduce a system’s life from 15 years to as few as 8–10 years.

Q3: Is DIY HVAC maintenance safe?
Basic tasks like filter changes are safe, but refrigerant checks, coil cleaning, and electrical inspections should be left to professionals.

Q4: What’s the #1 mistake homeowners make in summer?
Running the AC too low and nonstop, which strains the compressor.

Q5: How do I prepare my AC for off-season storage?
Clean filters, cover outdoor units (if recommended), and schedule an inspection before shutting it down.

Q6: What if I missed seasonal maintenance this year?
It’s never too late. Scheduling service now can still prevent bigger problems.