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10 Signs That Your Gas Furnace Needs Repairs

By Aztil –

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As we enter the holiday season, it’s time to fire up the heater and stay cozy on those cool winter nights. Even Florida has a winter, though we may prefer to crank up the heat until shorts are still comfy indoors. To do that, your gas furnace becomes the most important appliance in the house. After that initial smell of burning dust, your furnace should hum along all winter. But what if it doesn’t? We don’t use our heaters for much of the year, but reliable heating in the winter is vitally important. Knowing when to call for furnace repairs can keep you cozy all season and provide peace of mind for next winter. Aztil Air is here to help. Let’s look at the ten signs that your gas furnace needs repairs.

1. Strange Noises

Furnaces rarely make noise. You may hear some creaking right at first, but any serious noises are a bad sign.

  • Baning
  • Clanging
  • Squealing
  • Scraping

These sounds mean there is something wrong inside your gas furnace. These sounds can indicate loose or faulty components. Calling for repairs ASAP is the best way to stay safe and warm.

2. Inconsistent or Insufficient Heat

Your gas furnace should provide a steady flow of heat throughout the house. If you’re not getting enough heat, if the heat comes and goes, or if certain parts of your house have cold spots, there’s a problem. It could be an uncalibrated thermostat, clogged filters, problems with the blower fan, or a problem with the core heating system.

3. Short Cycling

A short cycle is when your furnace turns on and off repeatedly. This means it is not completing a full heating cycle and is likely taking damage and wasting energy with a very short cycle. Short cycles can be caused by a clogged air filter or signal problems from the thermostat. It can also happen if the furnace is overheating for some reason.

Quickly call Aztil Air for repairs if a gas furnace short cycles, as it could be dangerous and inefficient.

4. Rising Energy Bills

Did your energy bills suddenly spike when you turned on the heater? Does it cost way more to heat your home this winter than last winter, even in Florida’s mild cold season? If so, then you may have a furnace problem. Your furnace is working harder than it should. It could be an issue with your filter, ducts, or worn-out components that must be replaced.

Get your furnace inspected and tuned up before it costs a fortune in electricity or gas.

5. Yellow or Flickering Pilot Light

A pilot light provides a gas furnace with an essential function: lighting the gas used for heating. A healthy furnace should have a steady blue flame in the pilot light. If the flame goes yellow (a cooler flame) or flickers, it could indicate a problem with the furnace’s ventilation or gas supply. It could even be a sign of carbon monoxide leaking.

Immediately turn off your furnace and call Aztil Air for emergency repairs.

6. Unpleasant Smells

The burning dust smell when you first turn on your heater for the season is normal. But unusual smells after that should be a red flag.

  • A rotten egg smell can indicate a gas leak. Immediately shut off your furnace and its gas line, then open the windows before calling for emergency repairs.
  • A burning smell can indicate your furnace is overheating or there is a faulty component or exposed wiring that is scorching inside. Again, immediately shut it off and call for repairs.

Aztil Air can help you stay safe with emergency furnace repair services.

7. Difficulty Starting Your Furnace

Have trouble getting your furnace to start or keep running? This could be an issue with your gas furnace ignition system. It could also be a wiring flaw or a thermostat malfunction. A pro can help you diagnose and fix the problem so your furnace provides reliable heating again.

8. Frequent On/Off Cycling

If your furnace cycles on and off often, but not quite short cycling, it could still be a problem. This could indicate an issue with airflow or the thermostat. An inspection can discover why your furnace won’t keep running steadily.

9. Excess Dust or Poor Air Quality

A little dust when you first start your furnace is normal. But if the dust keeps increasing and your home’s indoor air quality drops, this could mean your furnace is not circulating air correctly or cleanly. Florida’s humidity can also cause dust to build up in your ducts and release when the blower runs. Duct cleaning and a furnace inspection can get to the root of the problem and help clear the air inside your home.

10. Carbon Monoxide Detector Alerts

Any home with a gas furnace (gas lines) should have active carbon monoxide detectors. These should be powered and placed near the floor to detect a gas leak that could lead to suffocation inside the home. If a carbon monoxide detector goes off, immediately shut off the furnace, close any gas lines (including the stove or other gas-powered appliances), and open all the windows.

Then call for emergency inspection and repairs.

Aztil Air Gas Furnace Repairs

If your furnace shows any of these signs, Aztil Air is here to help. We’ll help keep your home cozy and your furnace running safely all winter. Contact us online or call for emergency gas furnace repairs.

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Paul G., our service technician, was amazing.
Serviced our system and provided great guidance on how to improve the efficiency and lifespan of our A/C.
Excellent service, knowledgeable team, and reasonable pricing. Highly recommended.
Had a second team, Jordan and Jalen, come to clean vents and seal ducts. Great job. Very professional and cleaned up when they were finished.
Top notch service.
Ramon
was so helpful and he showed up early and energetic. I felt listened to and he was helpful. He represented the company very well. He valued my time
Dana Dussualt came out today and was very professional and respectful.
Alex did a great job arrived on time was very pleasant and helpful and answered all my questions
As usual Aztil and Dana were great. Prompt and professional.
Response from the owner:Hi Don, thank you for your kind words! We're so glad to hear that Angel did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Nicholas Garza. He is an excellent tech that took his time explaining everything.. he did his job and everything he was supposed to do. Very happy with today’s maintenance!! He’s a total asset to your company
Nico did a great job today!
Response from the owner:Hi Lisa Solon, thank you for sharing your positive experience with us! We're thrilled that Johnny was able to fix your AC and provide you with service even on a Saturday. We pride ourselves on having great technicians and being a reliable company. If you ever need any further assistance, don't hesitate to reach out to us again.
Alex Molina did a GREAT job for us.
He is a superb Ambassador of Aztil.
Knowledgeable, quality work.
Jordan and Jalen did a great job. I would highly recommend
I had an AC issue the day before Thanksgiving but Ramon was able to come the night before and get me up and running again. He was incredibly professional and personable. He let me know I desperately needed the UV light installed in my system. We went ahead and scheduled everything for a Friday install. My technician, Alex, came out earlier than expected (not complaining at all) and got everything cleaned and installed in no time. Professional and efficient. Both guys were amazing. A big thank you to both Ramon and Alex.
Pleasant and completed the complete installation of a new AC system
Noraldo, Dave and Hero were the technicians 😁
Michael came to AT and was professional, quick, and had a funny sense of humor.
Jordan and Jaylen
Did a professional job!
Mike king and dana Dussault are the men that serviced my AC . They arrived on time and went right to work. Based on Mike's recommendation Dana came to clean inside unit. They are a credit to your your company.
Response from the owner:Hi Janice, Thank you so much for your wonderful review! We're glad to hear that you had an excellent experience with our service. We pride ourselves on our knowledgeable staff, and it's great to know that Dana was able to provide you with such great service. We appreciate your feedback and hope to see you again soon!
Paul was amazing. He was kind and courteous. He took time to explain things to me and genuinely cared. Honestly all of the aztil employees have always been kind and courteous. I’ve been with aztil for 14 years. There have been some hiccups but overall they have good people working there and their work is always on point.
Dana was professional and helpful with replacing our compressor due to a power surge.
Elder was on time and performed installation on new thermostat quickly.
Had my AC go out. Alex Molina came first thing in the morning, fixed my AC and did a full clean and maintenance while here. Very professional and knowledgeable. Highly recommend
Elder Z provided great customer service and expert knowledge. Would highly recommend for my next service.
Outstanding service!!! Dana came today to service our A/C. Prompt courteous service. On time and outstanding!!
Response from the owner:Hi Rich, Thank you so much for your wonderful review! We're glad to hear that you had an excellent experience with our service. We pride ourselves on our knowledgeable staff, and it's great to know that Aztil was able to provide you with such great service. We appreciate your feedback and hope to see you again soon!
Niko was great! Very helpful and knowledgeable. Had a great service experience 😃
Paul your technician, is 1 of a kind..responsive...proficient...knows the product..its strengths ...its problem...DON'T lose this guy... make him a senior tech
Response from the owner:Thank you for the kind words Bill! We appreciate your feedback and we won't be losing Brandon any time soon. He's an invaluable asset to our team and we are very proud of his expertise. Thank you for taking the time to give us your honest review.
Wow, this guy (Michael) actually showed up on time was quick and efficient definitely knew what he was doing and even wore the little foot booties inside my house so I didn’t get dirt on the floor! He took his time to a great job, conducted some routine maintenance and even sucked out my condensation line and treated it. This was not one of those quick in and out smoke and mirrors operation. This was the real deal. TY!!!
Naraldo &. Hero were very courteous & professional. Codoes to both.Thank you for a great job
Niko Garza was very thorough and professional. Extremely satisfied with his work.
Service technicians Naraldo Buncie, and his partner Dave Moynahan, were prompt, professional, patient and knowledgeable in removing my old unit and installing my new unit. They started installing the new unit in the middle of the afternoon and we're finished in four hours. Noraldo also installed a Nest thermostat and explained how it works and paired it to my wife's phone. Some issues that arose were followed up by a call from Jack Bridges in the main office and resolved. We have used Aztil since we moved into our home over 4 year's ago and their AC department has been very reliable.
Paul Gross is always on time and highly efficient. He has worked with us before and is very professional. Definitely deserves 5 stars!
Niko superb service. Above and beyond!
Service Tech Michael King was awesome !
Niko was great! He was extremely thorough and answered all of our questions. I would absolutely recommend him again.
Nico Garza solved my problem a nd was professional and personable.
Great experience with Alex. He did a very good job and was informative.
For those looking for a reputable AC company. We have been using Aztil for many years, as has my daughter n a few neighbors and friends. We had a loud noise coming from our air conditioner inside our house. We called aztil, and was told somebody would be at our house between 1 and 4:00 that same day.

I received an email and a phone call from Dana saying what time he would be here. Dana showed up at about 1:30, and promptly got to the issue. We needed a new inside fan, Dana got on the phone to the office, and then let us know that they had a fan and he was going to get it and he would be back.

He left and came back within a half hour 40 minutes and proceeded to put in the new fan. He changed our filters and asked if we had any questions.

Dana did a GREAT job and made sure we were happy. He was very polite, neat n clean and courteous. Could not ask for a better service call tech.
Aztil is GREAT and I highly recommend them.
This morning, the battery for my AC system died, and when I looked at my thermostat the entire screen was blank. I started panicking because I couldn’t figure out what to do or how to replace the battery. My neighbor recommended Aztil Air Conditioning, so I called them right away. I spoke with the customer service manager, Sabrina, and she was truly incredible. She had me send her a picture of my thermostat, and then she personally walked me through the whole process step-by-step all through her own number. She was patient, kind, and made sure I understood everything. What really surprised me was that she didn’t charge me at all for the help. She told me she didn’t have to charge because she was able to guide me through it over the phone. That level of honesty and customer care is extremely rare.

Sabrina went above and beyond for me this morning, and I am truly grateful. I highly recommend Aztil Air Conditioning to anyone looking for a company that truly cares about their customers. Thank you again, Sabrina!
Nico was excellent. Full explanation of services. I would like to get him for any future services. I'd like to add that I was pleased with the vent cleaning that was performed by Alex Molina and his assistant.
Response from the owner:Hi Jazziz, thank you for your kind words! We're so glad to hear that Lazaro did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Dana and all the staff was very professional, courteous and prompt. Dana did an excellent job repairing my a/c and double checked his work. I am very pleased. Thanks again Dana, Juan and William.
John
Aztil has always been great. They respond quickly and are friendly and knowledgeable. Paul did my service today and was a pleasure. Thanks team Aztil!
Fantastic, wonderful and professional. I renewed my contract with Aztil. Very happy.
Thank you
Paul you are excellent 👏
Tino was very professional and always friendly he done an amazing job with my air conditioning thank you Aztil for sending him
Elder did an outstanding job at our home. Very professional.
Niko was very professional and fixed my AC quickly. Thank you!
Jalen and Jordan were so professional. They really did excellent work. Very happy with them.
Niko was very professional and knowledgeable.
Good service from Elden and Alex
Niko Garza was very helpful and professional, thank you
Elder was great !

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