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Common Furnace Problems You Need HVAC Experts to Fix
Posted On: June 21, 2018
Furnaces are complicated machines which may break and there is a variety of motives for why it does not turn on.
After the furnace is not working and the warmth is not flowing, there is an adequate chance that a number of these things is the origin of the breakdown.
Though a few of these issues may be repaired with the help of online tutorials, the others are rather intricate and might require an expert to work on it.
In case you have any queries concerning the subsequent furnace issues, please contact the experts of Twintech Heating & Cooling.
Congested Filters Congested filters reduce airflow to the furnace which could decrease the unit’s efficiency.
Because it must work harder to produce the desired temperatures, congested filters also increase the wear and tear of the unit.
Oftentimes, a furnace not blowing air is doing this because the filter is clearly congested.
Changing your filter regularly ensures that this does not happen.
Defective Heater Thermostats The wiring in the heater’s thermostat may come loose causing a short to happen and these shorts may also damage detectors or the electronics within the furnace itself.
Thermostats that fail often provide irregular readings or cause the furnace to cycle on/off more than it is supposed to.
Broken Belts The belt within the furnace mill can wear out and tear over time.
As it does, the furnace’s hot air circulation through the ductwork may be impossible.
The best solution to this problem is replacing the belt itself.
Damaged Heat Exchangers Broken heat exchangers are a frequent cause of a furnace blowing air or not blowing air in any way.
The thin metal of the heat exchanger may get cracked, coated with debris, or rusted from recurrent moisture vulnerability.
It might have to be replaced.
Worn Out Blowers Components like the limit switch inside the blower may wear out, which may lead the blower itself to operate continuously.
If this happens, cold air will be blown by the furnace throughout your home.
A furnace not blowing warm air must always be assessed by a certified professional.
Power Shortage Furnaces call for a significant quantity of power to function.
Whether an improper fuse is used, it may cause the breaker to trip if electricity circulates throughout the system.
If that is not the issue, it is possible that the cables come loose, and the unit is grounding out.
Clogged Gas Leaks, kinks in the hose, and clogs from the machine can lower the total amount of gas that reaches the unit.
These issues must always be repaired by a professional HVAC technician.
If your furnace is in need of repairs, our experts here in Twintech Heating and Cooling will be delighted to come to your home and fix the matter whenever possible.
Our specialist technicians can quickly evaluate the source of your issue and recommend the right repairs required to have your heating system back up and functioning efficiently.
In case you require a replacement unit, we could recommend one that matches your home and budget.
Please contact us now!
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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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