When you need furnace repair, heater tune-ups, or heating system installations, look no further than PFO Heating & Air Conditioning. Our HVAC technicians have years of experience and the required certifications to understand the specifics of your furnace. We have the knowledge to service all makes and models of heating systems and all of our services are affordably priced. We offer free estimates and free second opinions. Call our office today to schedule an appointment.

Why Is My Furnace Blowing Cold Air

When your furnace is malfunctioning…

it is a frustrating experience. There are many signs that indicate when there is something wrong with your heater. In some instances, while furnace troubleshooting, you will notice that your furnace may blow cold air instead of hot air. In this article, we will discuss some of the reasons that cause a furnace to do this.

Malfunctioning Pilot Light Or Flame Sensor

While modern furnaces generally use an electric ignition system, older furnaces generally use a pilot light ignition system. If the pilot light malfunctions, an old furnace will likely blow cold air. This means that, if you have an old furnace, you should ensure the pilot likely is working properly. Of course, if the light keeps going out, it is a sign of a bigger problem. This means you need a professional to inspect and clean your heating system, as well as carry out any necessary repairs.

On the other hand, an electric ignition system relies on a flame sensor to keep heating air. This means that if the flame sensor is dirty or defective, your modern furnace will blow cold air. Either way, you should hire a professional HVAC technician to inspect your heating system to identify and remedy the problem. Make sure that when you look for “furnace repair near my location”, that you select an HVAC company that has a good reputation and ample experience.

Ductwork

Old, damaged or worn out ducts allow conditioned air to escape the ductwork.

This prevents it from getting to the desired spaces. In fact, according to the Department of Energy (DOE), the average home loses anywhere from 20 to 30% of conditioned air due to leaky ducts. For this reason, if your ductwork is old, you should hire a professional HVAC technician to inspect it. This is particularly important because ducts are usually hidden behind walls, floors and ceilings, making it difficult to inspect them.

Clogged High-Efficiency Vent Pipes

The vent pipes of high-efficiency furnaces are normally located outside. For this reason, they may accumulate debris, including ice and snow over time, causing them to clog. When this happens, your heater will either shut down or blow cold air

Thermostat Setting

If you set your thermostat’s fan setting to “on”…

your furnace will blow cold air because the blower will run constantly even when your furnace is not working. Fortunately, you can easily solve this problem by switching your thermostat’s fan setting to “auto”. This ensures that your furnace blower only works when your heating system is working. While at it, ensure the batteries in your thermostat are not dead.

Overheating

If your furnace overheats, a safety feature called the limit switch will automatically turn the burners off, allowing your furnace to cool down to a safe temperature. When this happens, your furnace will blow cold air. One of the main causes of this problem is a dirty air filter. For this reason, you should replace your air filter regularly. Also, a dirty filter causes your heater to work much harder than necessary. When this happens, it increases your energy costs. Therefore, by replacing your filter, you preserve the health of your furnace and pay less on your monthly home heating costs.

 

Furnace Repair Services

Some of the reasons that may cause your furnace to blow cold air instead of hot air include:

• overheating
• clogged vent pipes
• wrong thermostat settings
• leaky ducts
• malfunctioning pilot/flame sensor

To keep your furnace in good working condition, hire a qualified HVAC technician to inspect, clean and repair your HVAC system regularly. This is particularly important because a qualified technician is able to identify most of the potential problems early, preventing expensive repairs. Always make sure that you work with the best furnace repair service in your area.

When looking for “furnace repair near me”, be sure to contact PFO Heating & Air Conditioning. Our technicians can inspect your furnace and diagnose why is it blowing cold air. They will provide you with all of the necessary information on your repair options so that you can make the best decision that works for you. No one wants a malfunctioning heating system in the winter. Therefore, you rest assured that when you work with us, our services are fast and you will pay the most affordable furnace repair cost. For friendly and personable service, call our office today.

Contact us now at (800) 253-9001 to find out more!