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Top Signs Your Furnace Needs Repairs Before Its Too Late
Posted On: December 20, 2024
A malfunctioning furnace can lead to costly repairs or a complete breakdown when you need it most. Catching the warning signs early can save you time, money, and frustration. Here are the top signs your furnace needs repairs before it’s too late:
1. Strange Noises
If your furnace starts making unusual sounds such as banging, rattling, or squealing, it could indicate loose or damaged components, worn belts, or a failing motor. These noises shouldn’t be ignored, as they often signal larger problems ahead.
2. Inconsistent Heating
Are some rooms warmer than others? Uneven heating can result from a faulty thermostat, clogged filters, or issues with the ductwork. Consistent heating is key to maintaining comfort in your home.
3. Rising Energy Bills
A sudden spike in your energy costs without a corresponding increase in usage could mean your furnace is working harder than it should due to inefficiency. Issues such as dirty filters or aging components can cause this problem.
4. Frequent Cycling
If your furnace turns on and off more frequently than usual, it might be short cycling. This could indicate problems with the thermostat, overheating, or airflow restrictions. Short cycling puts unnecessary strain on your furnace and increases energy consumption.
5. Unpleasant Odors
A burning smell when you first turn on your furnace is normal, but persistent odors like mustiness or rotten eggs could point to mold in the system or a gas leak. If you detect a sulfuric smell, shut off the furnace immediately and contact a professional.
6. Yellow Pilot Light
A healthy furnace typically has a blue pilot light. If it turns yellow or orange, it could indicate poor combustion or a dangerous carbon monoxide leak. This issue requires immediate attention.
7. Dust and Poor Air Quality
If your furnace is blowing excessive dust or particles into your home, it may be due to clogged filters or dirty ducts. Poor air quality can aggravate allergies and other respiratory issues.
8. Difficulty Starting the Furnace
A furnace that struggles to start or requires frequent restarting could have electrical or ignition system issues. This is often a sign of aging components that need professional inspection.
9. Old Age
If your furnace is over 15 - 20 years old, it may be nearing the end of its life. Older furnaces are more prone to breakdowns and inefficiency, so regular inspections and maintenance are essential.
10. Cold Air Instead of Warm Air
If your furnace is blowing cold air, it could mean problems with the heat exchanger, thermostat, or pilot light. This issue can leave your home uncomfortable during colder months and should be addressed immediately.
When to Call a Professional
If you notice any of these signs, it’s time to call a licensed HVAC professional. Regular maintenance can prevent many of these issues, ensuring your furnace operates efficiently and safely throughout the winter.
Don’t wait for a complete breakdown - address furnace problems early to stay warm and avoid costly repairs.
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See What Our Customers Are Saying:
Aug 8, 2025
We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.
Aug 8, 2025
Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!
Feb 18, 2025
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
Feb 18, 2025
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
Feb 18, 2025
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
Feb 18, 2025
Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!
Feb 18, 2025
Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.
Aug 17, 2024
I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. Ive used the company in the past for my furnace so I was happy when I recognized Greg at my front door. Hes great and the service is always top notch. Id highly recommend using twintech for honest, superior service in the Durham region. Thanks!
Aug 13, 2024
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
Aug 12, 2024
Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!
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