Forced hot air furnace blowing cold air

You have a furnace blowing cold air, which means you are losing money and everyone is bundled up and shivering inside. Sound familiar? A broken furnace is a stressful situation that can make everyone's life difficult. You need to call a furnace repair before it gets worse or before this leads to your furnace not turning on at all.

Lost password? Recover password. Remembered your password? Back to login. A furnace blowing cold air indicates that something is amiss. The furnace might have overheated, or there could be an issue with the thermostat, air filter, pilot light, flame sensor, ducts, condensate line, or gas supply.

Forced hot air furnace blowing cold air

If your furnace is blowing cold air in your home, this is a sign of an issue with the flame detector, gas supply, air filter, pilot light, or condensate lines. Many of these issues are able to be easily solved on your own by sanitizing or replacing components in the gas furnace. If your furnace is blowing cold air, it may be a good idea to check the pilot light on your gas system to ensure it is working. The pilot light in your gas furnace is designed to ignite the burners to ensure your system is able to develop heat. It is common to have issues with the pilot light on older gas furnaces. We recommend following the instruction kit that came with your furnace to re-light the pilot. The reset toggle is usually located near the bottom of the furnace. Please refer to your instruction kit if you are having issues finding the pilot light assembly and reset switch. After the reset toggle has been located, move it to the off position to deactivate the gas. We recommend waiting a couple of minutes before setting the reset switch to the On position to allow excess gas to exit from the chamber in your furnace. Next, adjust the reset toggle to the Pilot setting to ensure gas is able to be transmitted to the pilot light. After you have changed this setting, locate the reset button on your furnace and hold it down while placing a match in front of the pilot light. You will observe the formation of a flame from the pilot light.

If your find your furnace blowing cold air, here are a few tips to help you find, and potentially fix, the root of the problem.

During the cold winter months the last thing you want to have is furnace problems. Especially if your furnace is blowing cold air. There are many issues that can cause your heater to blow cold air. Typically it is best to have an expert come take a look however, below are some common issues that can result in your furnace blowing out cold air. This is a common issue amongst older furnaces. These older furnaces typically have what is called a pilot light. It is essentially a small flame that is running at all times and is required to light your furnace burners.

You likely searched something like a furnace not blowing hot air to find this article. You chose ours because it ranked well or seemed to have useful information. We hope both — because of the many, many articles available on the topic of the furnace blowing cold air — or not blowing hot air — ours strives to be three things:. Comprehensive — We walk through the potential reasons your furnace is not blowing hot air from the most common and easy to solve to more tricky issues. Easy to understand, so homeowners like you have the opportunity to DIY and not call for an expensive repair. Consider bookmarking our site for later when you want to learn more about gas furnaces, air conditioners, air purifiers and much more. Content Navigation.

Forced hot air furnace blowing cold air

Home » HVAC. As a licensed HVAC contractor, furnaces that blow cold air are what keep me busy through the winter. If a significant repair is necessary, be sure to get professional help. Gas furnaces can produce harmful and deadly gases if not repaired properly.

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If your high limit switch does not work properly, it could cause problems with your furnace. Ways to Free a Clog…. However, these leaks can occur at almost any point along the HVAC system. Do you see water pooling around the furnace? Ace Hardware. If you have a modern furnace, you probably have one that is controlled by a computer. You may need the experts to install a new sensor. It is essentially a small flame that is running at all times and is required to light your furnace burners. If you still have a furnace blowing cold air, is it time to call in the pros? High-efficiency gas furnaces create water, known as condensate, which drains into a PVC pipe called a condensate line. Remembered your password? Ways to Eliminate Dust. Our Story.

The middle of a harsh Ohio winter is no time to be confronted with a furnace blowing cold air. Schedule Furnace Service.

If you sense your furnace blowing cold air briefly, but the air is swiftly exchanged for warm air, this is most likely the cause. If the air filter in your furnace is covered in dust, grime, or soot, this will block incoming air from your gas furnace. Is Sediment Slowly Slaying Your…. Ways to Free a Clog…. Do you experience a furnace blowing cold air sometimes, and other times the furnace is blowing hot air? The furnace pilot light is a small blue flame that burns constantly and ignites burners at the beginning of a heating cycle. How to Find the Right…. It only sets the blower in action. Why Are Tree Roots in…. Become proactive in preserving your comfort. How to Troubleshoot Common Dishwasher…. Not sure? Turn on the power to the furnace.