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Simple Signs Your Furnace Needs Repair
Posted On: March 10, 2025
A well-functioning furnace is essential for keeping your home warm and comfortable, especially during colder months.
However, furnaces can develop issues over time, leading to inefficiencies or even breakdowns.
Recognizing the signs that your furnace needs repair can help you avoid costly replacements and ensure your home stays warm.
Here are some common indicators that your furnace may need professional attention.
1) Unusual Noises
If your furnace starts making strange noises, such as banging, rattling, whistling, or screeching, it could be a sign of mechanical issues, loose components, or airflow problems.
Any unusual sounds should be inspected before they turn into serious repairs.
2 Weak or Uneven Heating
If some rooms in your home are colder than others or your furnace isn’t producing enough heat, it may be struggling due to clogged filters, ductwork issues, or a failing blower motor.
Inconsistent heating is a clear sign that your system needs maintenance.
3) Increased Energy Bills
A sudden spike in your energy bill without an obvious reason could indicate your furnace is working harder than usual.
This inefficiency may be due to a dirty filter, aging components, or failing parts that need repair or replacement.
4) Frequent Cycling
If your furnace is turning on and off frequently, it could be a sign of a malfunctioning thermostat, clogged filter, or improper airflow.
Short cycling puts stress on the system and reduces its lifespan, making prompt repair essential.
5) Strange Odors
A burning or musty smell when your furnace runs could mean dust buildup, electrical issues, or even mold in the system.
A persistent rotten egg odor could indicate a gas leak, which is an emergency requiring immediate attention.
6) Pilot Light Issues
For gas furnaces, a healthy pilot light should burn blue.
If it’s yellow, orange, or flickering, this may signal carbon monoxide issues or incomplete combustion.
Any changes in your furnace’s flame color should be inspected right away.
7) Poor Air Quality
If you notice an increase in dust, dry air, or allergy symptoms in your home, your furnace’s filter or ventilation system may be struggling.
Regular filter changes and maintenance can improve air quality and furnace efficiency.
Don’t Ignore Furnace Warning Signs
If you notice any of these signs, it’s best to schedule a professional inspection before small problems turn into costly repairs.
Regular maintenance and timely repairs will keep your furnace running efficiently and ensure your home stays comfortable all season long.
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See What Our Customers Are Saying:
Apr 28, 2022
I left a live chat message on their website that my air conditioning was not working. Within 1hr a representative called me to discuss my options.
The next day he came to the house to review my needs and give me a price for a new system. Price quoted was less than I expected and the installation was completed the following day. I found their salesman and the installers very knowledgeable and easy to deal with. All my questions were answered. Everything was properly explained in regards to what unit was needed and why, along with instruction where needed for use.
The installers made sure everything was working properly before they left.
Apr 28, 2022
This is to thank Twintech Heating and Cooling for their exceptional and timely service. Mitch, their technician was very courteous and generous with his time right from his first meeting with us. He not only took the time to check everything but also educated us on why we needed what he recommended. Greg and Mitch graciously accommodated us on our requested day and time for job to be done. They were both very courteous and responsive to our needs and special requests especially in a tight spot. The job was finished neatly and on time. Thank you Twintech for your great service !
Apr 28, 2022
They came the day and time they had planned for us and were very fast and efficient! The AC works amazing and it is amazing during the heat of the summer we have already got! Thanks for everything you did for us!
Apr 28, 2022
Would recommend this company to friends and family in a heartbeat. Very professional , on time and left no mess when the job was done.
Apr 28, 2022
Great customer service. Responsive and professional. I would highly recommend Twintech, I used them previously for repair service and a new air conditioner- very satisfied.
Apr 5, 2022
Our air conditioner failed. Made a call and within 15 min a technician was at our door.
The issue was fixed and many suggestions were provided.
Thanks to Mitch. Great service !
Apr 5, 2022
Our furnace was rattling, as soon as we put our air conditioner on this past week. We had researched looking for a company that was Registered with Better Business Bureau, and this company TwinTech, had A+ Rating. Scott, was immediately helpful via text/phone and sent his technician as soon as he was able...Mitchell/technician provided great professional service. Thank you TwinTech.
Sean and Debbie
Apr 5, 2022
I contacted various companies when looking to install a new furnace and I found Twintech to be transparent with their communication and approach. They had options to suit my various requirements and the price vs quality was very good. The after installation communication was also very good and they answered all queries I had.
Apr 5, 2022
My furnace broke down last month. The team was quick to respond, courteous, professional and mindful of COVID-19 concerns. I highly recommend them if you are considering replacing or servicing your HVAC equipment.
Apr 5, 2022
I was very happy with the installation and price. I would definitely recommend. Thank you Twintech.
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