There are many reasons why a gas furnace might start blowing cold air. This alone should be reason enough not to attempt a DIY repair because there's a slim chance of you arriving at an accurate diagnosis.
You're better off engaging a seasoned heating technician who is better positioned to accurately diagnose and meticulously repair your equipment. In this article, you'll discover three common reasons why your gas furnace isn't warming your home and how your heating technician will fix the underlying problems.
The Pilot Light Is Out
This is one of the most common reasons a furnace stops working. If the pilot light goes out, the furnace will no longer be able to heat your home. You can try relighting the pilot light, but if it keeps going out, you may need to call a technician.
A plausible explanation for this phenomenon is a faulty thermocouple. This component is incorporated into your furnace equipment to enhance residential safety. It prevents the gas valve from letting gas flow when the pilot light is out. This way, you don't have gas leakage at your residence. When it's compromised, the furnace won't come on. Thankfully, a seasoned technician can address the primary problem and restore warmth in your indoor spaces.
Your Furnace Isn't Getting Enough Power
If the furnace is not receiving enough power, it will not be able to heat your home properly. This could be due to a faulty electrical circuit or a tripped breaker. You should contact your furnace technician before the problem gets out of hand. They'll figure out what is limiting the voltage supply and provide a lasting solution.
Compromised Furnace Venting
If the furnace is not vented properly, the exhaust gases will build up in the unit and eventually cause it to malfunction. This could be due to a blockage in the venting system or a problem with the flue pipe. Whichever the case, your repair professional can take care of the issue.
So rather than attempting a DIY fix, you should call your local furnace technician with your observations and let them get to the root of the problem. Aside from ensuring proper furnace ventilation, the professional will also recommend the best practices to ensure airflow isn't restricted again in the future.
If your gas furnace starts blowing cold air, don't panic! In most cases, instead, call your local furnace technician and let them get to the root of the problem.
Contact a company like Superior Plumbing & HVAC Services to learn more.