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Furnace: When to Call a Professional
Posted On: February 24, 2025
A well-functioning furnace is essential for maintaining a comfortable home, especially during the colder months. While regular maintenance can help prevent issues, there are times when professional intervention is necessary. Here are key signs that indicate it's time to call a furnace technician:
1. Strange Noises
Unusual sounds such as banging, rattling, squealing, or grinding can signal mechanical issues, loose components, or airflow problems. A professional can diagnose and fix the problem before it worsens.
2. Inconsistent Heating
If some rooms in your home are significantly warmer or cooler than others, it could indicate ductwork issues, thermostat malfunctions, or a failing furnace. A technician can identify and resolve the underlying cause.
3. Short Cycling
When a furnace turns on and off frequently without reaching the desired temperature, it may be overheating due to a clogged filter, malfunctioning thermostat, or a more serious internal issue. A professional assessment is necessary to prevent further damage.
4. Rising Energy Bills
A sudden spike in energy costs without an increase in usage may indicate that your furnace is running inefficiently. Professionals can perform an inspection to improve efficiency and reduce costs.
5. Weak or No Airflow
If little to no air is coming from the vents, there may be an issue with the blower motor, fan, or clogged ducts. A technician can determine the cause and restore proper airflow.
6. Furnace Won't Start or Stay On
If your furnace fails to start or shuts off unexpectedly, the problem could be with the ignition system, pilot light, or electrical components. A professional can safely repair these issues.
7. Carbon Monoxide Alarm Activation
A carbon monoxide (CO) detector going off is a serious emergency. If this happens, turn off the furnace, ventilate your home, and call a professional immediately to inspect for leaks.
8. Yellow or Flickering Pilot Light
A pilot light should burn blue. A yellow, flickering, or irregular flame may indicate a gas imbalance or carbon monoxide risk, requiring immediate professional attention.
9. Persistent Burning Smells
A burning smell that doesn’t dissipate may indicate an electrical issue, overheating, or a dust buildup. A professional can check for fire hazards and prevent potential safety risks.
10. Age of the Furnace
If your furnace is over 15-20 years old and frequently experiencing issues, it may be time for a professional to assess whether repair or replacement is the best option.
Final Thoughts
While some minor furnace issues can be addressed with simple maintenance, persistent or unusual problems require professional expertise. Regular servicing can help extend the lifespan of your furnace, improve efficiency, and ensure safety. If you notice any of these warning signs, don't hesitate to call a qualified HVAC technician.
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See What Our Customers Are Saying:
Aug 23, 2022
It was a refreshing experience interacting with the Twintech team. From Bob, the sales consultant, who articulated in layman's terms all the options available and reasons for making any selection. This was done without the prevailing pressure tactics so commonplace today.
Before proceeding Mitch, the technician, at our request conducted a service check on our 30 yr old furnace. His report was positive indicating no urgency to replace it. Again no pressure tactics.
Three days after first meeting with Bob, the installation team of Greg and
Spencer completed the installation within the planned time frame.
A very professional, courteous and transparent team which delivered on their promise. I highly recommend Twintech.
Aug 22, 2022
Initial contact with sales resulted in an immediate response, which led to a timely installation. Both sales and installers were all very professional. I have no hesitation in recommending TWINTECH.
Aug 21, 2022
I had a great experience with TwinTech. The company offered a reasonable quote, and performed a quick and clean installation. The installer Greg was experienced, professional and courteous. He explained the services he performed and gave recommendations on maintain the new furnace.
The salesman Bob was honest
and professional and educated me on how to achieve optimal performance.
All communication from them was quick and they came the following day. I was pleased with the service and would recommend them.
Aug 20, 2022
From quote, to installation, to follow up, Twintech provided excellent service. I would highly recommended their services.
Aug 19, 2022
I had a really great experience with these guys. The salesman Bob was clearly very knowledgeable about everything to do with heating and cooling a home, spent a lot of time with us going over the details of the job, never rushed us and came back after the install to make sure we were happy. The installation crew was excellent, they covered the floors all the way from outside down to the basement furnace room, kept the place clean, got the work done on time and were very friendly. Ive got 15 years in the contracting/ construction industry and these guys are one of the most professional companys Ive dealt with. Great company!
Aug 18, 2022
Had great service and clean-up was good. Was happy with my salesman. They were very friendly and helpful. I needed a new furnace as our was over 20 years old. The furnace and air-conditioner work great and they are very quiet. I am very pleased with the service and product I received.
Aug 17, 2022
Met with Dave for the sales process and he was great about explaining and going over everything to us. The install happened very quickly and the team were super professional and friendly. We are very happy with this company and their services and we definitely recommend them to others. Thankful my sister recommended them to me!
Aug 16, 2022
Reviews for Twintech were good, and they did not disappoint. After an initial visit to discuss the suitable AC unit for replacement, an installation date was available in just a couple of days, and everything was installed without a hitch. Highly recommended
Aug 16, 2022
Very pleased with the installation of our new furnace and A/C unit. From quotation stage to the completion of the job Twintech was very professional.
Thank you for a job well done.
Aug 15, 2022
My old water heater quit on me. I called TwinTech. In less than 4 days, I had my new water heater installed and the old one taken away. The whole process was quick, easy, pleasant, and well done. This is the third time I've dealt with TwinTech and I've been satisfied each time.
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