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Is Your Furnace Blowing Cold Air?

Updated: Apr 7

Is your furnace blowing cold air? There are a multitude of potential reasons why this could be happening. Take a look below to see if you find your solution.

Furnace blowing cold air

1. The filter is dirty. It is possible that your furnace is blowing cold air because the filter is too dirty. When this happens, the hot air from the furnace gets trapped and cannot flow through your house properly. Because of this, it is important to regularly clean your air filter for your HVAC system and replace it when necessary. If you need assistance with cleaning or replacing your filter, Beam HVAC can help.

2. The fan isn’t being used correctly. Check the fan setting on your thermostat. If it is set to “On” instead of “Auto,” that may be the issue. If the thermostat is set to “Auto,” it will only blow when air is being heated. If it is set to “On,” the air will still circulate, even without the heat from the furnace. Try adjusting these settings to see if it is the root of the problem.

3. Thermostat problem. Check the thermostat to make sure that all of the settings are correct. If you’ve installed a new thermostat recently, check the manual for any troubleshooting ideas, or contact Beam HVAC with any questions.

4. Out of oil. If your furnace runs on oil, check the oil tank. If the tank is empty, it needs to be refilled in order for the furnace to work properly again.

5. Problem with electronics. If you have a new furnace that has electronic controls, there could be an issue with them. The easiest way to check this is to reset the system. This requires fully turning off the system, waiting for a few minutes, and turning the system back on again. Check the manual for any troubleshooting steps or settings that you may have missed.

6. The pilot light is off. If you have an old furnace, the pilot light could be extinguished, which cuts off the heat. Relight the pilot light to solve the problem. If the pilot light will not light, you may have a valve problem. If this is the case, Beam HVAC can help.

7. Leaking ducts. If there are holes in your ductwork, the hot air is escaping. Unfortunately, you cannot fix this problem yourself. Thankfully, Beam HVAC has you covered.

Is your furnace blowing cold air? If the answer is yes after trying all of these solutions, it’s time to call Beam HVAC. Remember: do not undertake any projects with your furnace if you don’t know how. It is best to let Beam HVAC handle it. https://www.beamhvac.com/

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