Your furnace is likely something you don’t really think about—until it's broken. Once the annoyance and stress hits, it can also be frustrating to not understand what went wrong. At Aire Serv of Dallas, we believe it’s important to educate our customers about their HVAC systems so that you can not only take excellent care of your system and prevent future breakdowns, but also be a smarter homeowner overall.
Read on to learn a few typical Dallas furnace repair problems and their possible causes.
The Furnace Won’t Turn On
There can be many reasons why your furnace won’t turn on. Some of the possible causes of a furnace that won’t turn on include:
- The circuit breaker is off. You may not have an electric furnace, but even if it runs on gas or propane, there are still parts of your furnace that use electricity. The first step in troubleshooting a furnace that won’t turn on is to ensure all the HVAC switches on your circuit breaker panel are turned on.
- The thermostat is faulty. You’ll also want to check your thermostat if your furnace won’t turn on. It may be that the thermostat is broken or needs to be reset. To check your thermostat, set it to heat and then increase the temperature to 10 degrees hotter than usual. This should make the system kick in. If it doesn’t, then your thermostat may need repairing.
- The air filter is dirty. Over time, your thermostat collects dust and allergens from the air. If you’ve not changed the air filter in your furnace in a while, it may have become very clogged. In some furnaces, a severely clogged air filter will trigger a safety feature that will prevent the furnace from turning on.
- The pilot light has gone out. The pilot light is key to a properly functioning furnace. If it has gone out, then the furnace won’t turn on—this is also a safety feature. Without a pilot light, if the furnace stayed on it would pump dangerous gas into your home.
- There is a lack of natural gas or oil supply. Similar to how your car needs gas to run, so does your furnace. If you have a natural gas or propane furnace that won’t turn on, it may not be receiving enough fuel. If the furnace runs on natural gas and you also have a natural gas stove, you can turn on the stove to see if the problem is with the gas supply or with the furnace alone. If neither are working, you should contact your energy company as soon as possible.
The Furnace Won’t Turn Off
If you’re having the opposite problem and your furnace won’t turn off, then it could be due to the following factors:
- The thermostat is faulty. Similar to how a malfunctioning thermostat could prevent your furnace from turning on, it can also stop it from turning off. Possibly, the wiring that communicates to your furnace has worn out so the furnace doesn’t realize your home has reached the right temperature. Alternatively, your thermostat settings might be incorrect. For example, the thermostat may have been left on “on.” This will tell the furnace to run continuously. Switch your settings to “auto.” This will tell the furnace to turn off once your home is warmed.
- The air filter is dirty. A furnace with a dirty air filter may run continually if it doesn’t have the safety feature of shutting down due to a dirty filter. This is because the congested filter forces your furnace to work hard to heat your home. As the furnace is less efficient, it has to run longer to get your home to the set temperature.
- The ductwork is leaking. Your ductwork is what moves hot air through your house. If there is a break in the ductwork and the hot air leaks out, then your home will not be heated efficiently. To try and remedy your colder home, the furnace will keep running.
- The blower fan motor is broken. The blower fan forces hot air into the ductwork, where it moves through your home. If there is a problem with the blower fan motor, the furnace may fail to stop running. A malfunctioning blower fan motor is typically due to a broken fan limit switch. The fan limit switch is what triggers the motor to turn “off.”
The Pilot Light is Out
Generally, there are a couple of reasons why your furnace’s pilot light might go out.
- The thermocouple is malfunctioning. The thermocouple’s job is to deactivate the gas in your furnace when the pilot light turns off. If your furnace did not have a thermocouple, natural gas would leak into your home. If the thermocouple can’t detect the flame in your furnace—for instance, if it’s broken or covered in dust—it will shut off the natural gas supply and inhibit the pilot light.
- The pilot light has blown out. Like a candle, sometimes a breeze or draft in your home can blow out the pilot light. Even if you think this is why your pilot light has extinguished, it’s still safer to call the Dallas repair professionals at Aire Serv to check. Our skillful technicians will be able to see if there is an underlying problem that caused the pilot light to go out. Our friendly and capable experts can be reached or online.
Why Choose Us for Your Dallas Furnace Repair Needs?
At Aire Serv of Dallas, we always put our customers first. We truly care to ensure that our clients feel safe and comfortable in their homes—while also breathing clean and healthy air. We are committed to providing outstanding HVAC repair and maintenance services while also consistently going above and beyond to solve all your Dallas furnace repair problems.
Our team will treat you and your family with respect from the minute you give our friendly administrative staff a call to when our technicians leave your home after completing a job. We take care not only to cause the least disruption to your daily life, but to also thoroughly repair your broken furnace while looking for underlying problems to prevent you needing future repairs. Your peace of mind is our first priority.
Since we prioritize giving you and your family a positive experience from start to finish, our skillful Dallas furnace repair professionals are available 24/7 for emergencies. Our HVAC experts will come to the rescue when your furnace goes out during those chilly winter Dallas nights. Even if you wake up to a freezing house at 4:00 a.m., our technicians will be there to help. We also never charge overtime fees. Having your furnace break down is stressful enough. The last thing we’d want to do is add to that stress by over charging you.
Each of our HVAC technicians are trained experts when it comes to Dallas furnace repair. We offer all our clients our Fixed Right Promise because we guarantee that if your furnace isn’t repaired properly the first time, then our technicians will fix the problem at no additional cost within 60 days of the initial repair.
Our team brings their expertise to communities across Dallas, including: Bluffview, Lake Highlands, Lakewood, Lochwood, Lower Greenville and Preston Hollow—to name a few.
When you hire the professionals at Aire Serv of Dallas, we promise you can rest assured knowing you will receive outstanding customer service while having your Dallas furnace repair problems solved quickly and efficiently.
Frequently Asked Questions
Do you have further questions about Dallas furnace repair? Keep reading to see if we answer them here. If not, we invite you to call our courteous staff or request an appointment online.
How to Find a Trusted Furnace Repair Service Near Me?
If you’re looking for HVAC technicians that you can trust in the Dallas area, then you have come to the right place. Our Aire Serv location can expertly handle your furnace repair needs while earning your trust and your business through our outstanding customer service and passion for serving the Dallas community. You don’t just have to take it from us, take a look at our customer testimonials to see what our other customers think.
How Long Will My Furnace Last?
Generally, gas furnaces last between 15 and 20 years. Regularly scheduled maintenance appointments will help keep your furnace lasting as long as possible. Maintaining your furnace will help troubleshoot any problem areas so that you can catch issues before they escalate into costly repairs or replacements.
Not sure how old your furnace is? We can help. Look for the manufacturer serial number on the inside of the furnace cover. Then, give us a call and we can give you the manufacturing date.
How Much Does Furnace Repair Near Me Cost?
At Aire Serv of Dallas, we offer upfront pricing so that you don’t have to worry about hidden fees—or being handed a bill much higher than you anticipated. We charge by the job, not the hour. Since costs will vary depending on the job, we invite you to give us a call or request an appointment online to give us the details of your Dallas furnace repair problem. We also offer flexible financing options.
How Often Should You Have Your Furnace Cleaned?
To get the most out of your furnace, the best practice is to schedule annual professional maintenance and cleaning services.
During a maintenance and cleaning service with our Dallas team, we clean the entire system from top to bottom. Along the way, we inspect each part of your furnace to ensure that it’s working correctly and safely—and that your family is breathing quality air.
Should I repair or replace my furnace?
There are two reasons why you should consider replacing your furnace over repairing it. Firstly, if your furnace is at the end of its lifespan it makes more sense to get a new one as it will likely begin breaking down anyway. Secondly, if it’s most cost-effective to invest in a new furnace then that is a smarter choice than trying to repair a furnace on its last legs.
Consider replacing your furnace if:
- Your furnace is more than 16 years old. While a well-maintained furnace can last up to 20 years, if your furnace is over 15-years-old and has been giving you problems then it’s time to replace it. Look for issues like a failing pilot light or a continually running furnace.
- You’ve had more than one furnace repair job over the last two years. It’s very common for furnaces to start breaking down during the last couple years of their life. If you’ve had multiple repairs over the last two years, it’s time to buy a new furnace.
What Can Cause a Furnace to Stop Working?
There are a few reasons why your furnace is not working. Do a quick visual inspection to see if there is a problem with:
- Leaking air ducts
- A damaged thermostat
- The furnace is not turned on
- You have dirty filters
If you are unsure why your furnace has stopped working, call the experts at Aire Serv of Dallas. Our technicians can ensure that your furnace is operating safely and keep your Dallas home cozy—as it should be.
Schedule an Appointment with Our Dallas Furnace Repair Professionals Today!
In need of a Dallas furnace repair service? We invite you to call our professional and courteous team today. Our friendly and skillful technicians are more than happy to solve any HVAC problem you might be dealing with. Give us a call or request an appointment online. We look forward to meeting you and helping your family stay warm.