What to Do When Your Heat Stops Working in Lewisville This December

Bill Grote

Dec 01 2025 16:00

When a cold front hits Lewisville and your furnace suddenly stops working, it can feel stressful fast. The good news is there are a few simple steps you can take right away before you call for emergency heating service. In this guide, Select Air Conditioning & Heating—your local, family-owned HVAC company in Lewisville, TX—walks you through what to check, when to call a pro, and how to reduce the chances of losing heat again in the future across Lewisville, Flower Mound, Denton, Carrollton, Coppell, and nearby North Dallas suburbs.

 

 

 

Step 1: Check a Few Simple Things Before You Call

 

 

When the heat goes out, it’s tempting to assume the worst. But many “no heat” calls around Lewisville turn out to be something simple that homeowners can check themselves.

 

Start with your thermostat. Make sure it’s set to “Heat,” the temperature is higher than the current room temperature, and the batteries (if it uses them) aren’t dead. Next, check your breaker panel and the furnace switch to confirm nothing has tripped accidentally. If your system has a separate shutoff near the unit, make sure it’s on. These quick checks can sometimes save you a service call, especially in homes throughout Lewisville, Flower Mound, and surrounding communities.

 

 

 

Step 2: Pay Attention to What Your Furnace Is Doing

 

 

If those simple checks don’t fix the issue, take a moment to notice what your furnace is trying to do. Does it click on and then shut right back off? Is the blower running but only cold air comes out of the vents? Do you hear any unusual noises?

 

These details can help a technician from Select Air Conditioning & Heating diagnose your furnace repair faster once we arrive at your home in Lewisville, Denton, Carrollton, or Coppell. If you smell gas or strong burning odors, turn off the system and avoid restarting it until a professional can take a look. It’s always better to shut things down and ask questions than to keep forcing a failing unit to run.

 

 

 

Step 3: Avoid Common “Fixes” That Can Make Things Worse

 

 

When it’s chilly outside, it’s understandable to want to get the heat back on any way you can. Still, there are a few things we recommend you avoid.

 

Don’t repeatedly reset breakers or keep flipping the furnace power switch on and off if it keeps shutting down. That can stress electrical components and sometimes make a minor issue more serious. Avoid opening panels or trying to access burners, wiring, or gas components inside the unit—those are best left to a trained technician. And if you rely on portable heaters in Lewisville or the surrounding suburbs while you wait for service, be sure they’re used according to manufacturer directions and kept well away from anything flammable.

 

 

 

Step 4: Call a Local Heating Company You Can Trust

 

 

Once you’ve checked the basics and your furnace still isn’t heating, it’s time to call in a professional. Choosing a local HVAC contractor in Lewisville means faster response times and a technician who understands how North Texas weather and home construction affect your heating system.

 

At Select Air Conditioning & Heating, we provide heating services and furnace repair throughout Lewisville, Flower Mound, Denton, Carrollton, Coppell, and nearby North Dallas areas. When you call, sharing what you’ve already checked and what your system is doing (or not doing) helps us know what to look for first. Our team will arrive with the tools and parts needed to handle most common furnace problems on the spot, so you can get your heat back as quickly as possible.

 

 

 

Step 5: Plan Ahead So Your Furnace Is Ready for the Next Cold Front

 

 

Once the immediate heating issue is resolved, it’s smart to think about how to reduce your chances of another surprise outage. Many winter breakdowns in Lewisville happen in systems that haven’t had heating maintenance in a long time.

 

A simple furnace tune-up visit from Select Air Conditioning & Heating can help catch weak components, dirty burners, or airflow issues before the next cold front arrives. Pairing regular maintenance with a clean air filter and good attic insulation can make a big difference in how reliably your home stays warm. If your furnace is older, we can also talk through whether it makes sense to start planning for a future replacement instead of dealing with frequent repairs.

 

Here are a few easy habits that help keep your system in better shape:

 

  • Change or clean your air filter regularly

  • Keep vents unblocked by furniture, rugs, or boxes

  • Schedule yearly furnace tune-ups before peak winter use

  • Mention any new noises or comfort issues early instead of waiting

 

 

Small steps like these can go a long way toward more reliable heat in Lewisville and the surrounding communities.

 

 

 

Need Heating Help in Lewisville This Winter?

 

 

If your heat has stopped working—or if you just want to make sure your system is ready for the next December cold front—Select Air Conditioning & Heating is here to help.

 

Call us today or send a quick message through our contact page to schedule furnace repair or heating maintenance in Lewisville, Flower Mound, Denton, Carrollton, Coppell, or nearby North Dallas neighborhoods. Our family-owned team will respond promptly, explain everything in simple terms, and help you get your home warm and comfortable again.