Common HVAC Problems in the Summer (And How to Fix Them Fast in Plano, Texas)
Is your AC suddenly blowing warm air? Is your thermostat blank? Welcome to summer in Plano, Texas—where a broken air conditioner isn’t just annoying, it’s a problem you need fixed fast.
This guide walks you through the most common HVAC problems homeowners face during the summer, how to troubleshoot them, and when it’s time to call Samm’s Heating and Air Conditioning.
Why HVAC Issues Spike During Texas Summers
North Texas summers bring triple-digit heat, humidity, and nonstop AC usage. That combination pushes your system hard—and increases the chances of something going wrong.
Knowing what to watch for (and how to act quickly) can help you avoid major repairs, stay comfortable, and extend the life of your HVAC system.
Top 5 Common HVAC Problems in Summer
1. Thermostat Isn’t Working or Goes Blank
If your thermostat screen goes blank, try these quick checks:
Still no luck? You may have a blown fuse or a wiring issue. A broken thermostat could also be the culprit. If you’re unsure, call Samm’s Heating and Air Conditioning in Plano and we’ll take it from there.
2. AC Is Blowing Hot Air
If your air conditioner is running but blowing warm air, the issue could be:
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Low refrigerant (often caused by a leak)
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A clogged or dirty air filter
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Frozen evaporator coil
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Dirty condenser coils outside
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Incorrect thermostat settings
Don’t ignore this. Operating your AC in this condition can cause further damage. Call Samm’s to get it checked out fast.
3. AC Turns On But Doesn’t Cool the House
This is one of the most common calls we get during the summer. Possible causes include:
Our team can assess your home, check your system load, and get your cooling back on track.
4. AC Unit Freezes Up—Even in 100+ Degree Weather
Yes, it can happen. If your AC system is frozen solid, it may be due to:
Shut off the system to allow it to thaw, then contact us for a full inspection before turning it back on. This is a critical repair that needs professional attention.
5. Weak Airflow Coming From Vents
Poor airflow can be caused by:
This not only reduces comfort but can also increase your energy bills. It’s a fixable issue—let Samm’s find and solve the root cause.
How to Prevent HVAC Breakdowns in the Summer
Here’s how Plano homeowners can get ahead of seasonal AC issues before they turn into emergencies.
Schedule Preventive HVAC Maintenance
Seasonal AC maintenance helps catch problems early. At Samm’s, we check:
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Refrigerant levels
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Coil cleanliness
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Electrical connections
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Safety controls
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Thermostat function
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Drain lines
We recommend booking your AC tune-up before summer starts—or now, if it’s been more than 12 months.
Change Air Filters Regularly
A dirty filter chokes airflow, forces your system to work harder, and reduces indoor air quality. Change it every 30–60 days depending on usage and household conditions.
Keep the Outdoor Unit Clear
Remove weeds, leaves, and anything that might block airflow around your outdoor condenser unit. A little yard work goes a long way in boosting system efficiency.
Seal Air Leaks
Use weatherstripping and caulk around doors and windows. Not only will your home stay cooler, but your HVAC won’t have to work overtime to keep up.
Install a Smart Thermostat
Smart thermostats help manage temperature more efficiently, especially during peak energy hours. They’re programmable, remote-controllable, and help save money over time.
How to Lower Your AC Bill in the Texas Heat
Even a well-running system can burn through cash if you’re not careful. Here’s how to keep bills low while staying cool:
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Use ceiling fans to move air
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Close blinds and curtains during midday
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Avoid cooking indoors during the hottest hours
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Schedule routine system checkups to maintain peak performance
When to Call the Professionals at Samm’s HVAC
Here’s when you should skip the DIY and call us at Samm’s Heating and Air Conditioning:
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Your thermostat is still dead after changing batteries and checking breakers
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Your AC is blowing hot air despite filter changes
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You hear loud clanging, screeching, or buzzing
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There’s ice forming on your outdoor or indoor unit
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You smell something burning or musty when your system runs
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Your system is over 10 years old and keeps having problems
Our team is licensed, local, and known for fast, friendly service in Plano and surrounding North Texas communities.
Why Choose Samm’s Heating and Air Conditioning?
We’ve served the Plano community for over 20 years with a focus on:
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Honesty and transparency
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Quality workmanship
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Friendly, professional technicians
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Clear communication and no-pressure service
From emergency AC repair to full system replacement, we’re ready to help. Don’t take our word for it—just check out our 5-star reviews on Google.
Schedule Your AC Service Now Before the Next Heatwave Hits
Whether your AC is acting up or you just want peace of mind, Samm’s Heating and Air Conditioning is ready to help.
Call us today at (972) 200-2723 to book your service or get a free estimate.
We proudly serve Plano, Allen, McKinney, Richardson, Frisco, and the greater North Dallas area.
Or visit us online at www.sammsheatingandair.com to schedule service in just a few clicks.