Why Is You Heat Blowing Cold Air?

Is your heater blowing cold air instead of warm air in this cold winter? This signifies that your heating system needs maintenance and a professional inspection to restore its efficiency and performance.

What if you face this problem when you come home after a long day at work?

Calling for emergency heating repair services is an alternative, but you can fix your heating system at home with the help of troubleshooting tips.

If the problem still persists after troubleshooting, do not hesitate to contact Advantage Heating and Cooling, a professional contractor, specializing in services in Battle Ground, WA.

Problems that Can Cause the Heating System to Blow Cool Air

Here are some reasons why your heating system is not working properly: 

  • The pilot light is off

    Older furnace models have a pilot light that helps to start the ignition process. All you need to do is find the pilot light and its reset toggle switch. The reset toggle switch is located near the bottom of the system and turns it to the off position.

    Now, wait 5-10 minutes before turning it into the on position. Adjust the reset toggle switch to the pilot setting and find the reset button. Hold the reset button while you ignite the pilot light with a candle, and release the button when the pilot light is lit again. 

  • Dirt on the flame detector

    Some gas furnaces use the flame detector to begin ignition and ensure the heating cycle is completed properly. However, the heating system may blow cold air if the flame detector is covered with dirt, dust, and grime.

    All you need to do is locate the flame detector and clean it with a soft cloth, according to our technicians for heating repair in Battle Ground, WA. The flame detector is located on the right side of the burner assembly.

  • Clogged air filter

    A clogged air filter can reduce indoor air intake, and the heating system may work inefficiently. So, replace your air filter if your heating system blows cold air instead of warm. 

  • Blocked condensate pipes

    Blockage in the ductwork can cause the burners to stop working abruptly, and you may not receive warm air because the burners need to be fixed. So, you can check the condensate drain and clean the blockage with the help of a long brush.

    Pour down a pan of boiling water to clean the drain. After a few minutes, pour a spoonful of baking soda and vinegar down the pipe to protect it from blockages in the future. 

  • Issues in the ductwork

    Cracks in the duct joints, a massive hole in the duct, or deteriorated insulation on the pipes can cause the air to escape to the outdoor environment. So, your heating system is working perfectly fine, but the warm air is not reaching its destination due to issues in the airway. A technician can assist you in fixing the ductwork issues.   

  • Improper thermostat settings

    Some of our furnace repair experts in Battle Ground, WA, suggest that sometimes your preferred thermostat settings can change by mistake. So, check the thermostat settings before calling the technicians. Ensure the blower motor is in auto mode rather than on mode. The heating system will run continuously even when it produces heat if your thermostat is in on mode.


Spending a day without the heating system can be hard when the temperature is dipping. So, if the troubleshooting tips do not improve the situation, call us for heating repair services, at the earliest possible time.

Advantage Heating and Cooling specializes in heating repair services in Battle Ground, WA. Our technicians are here at your service to ensure you sleep comfortably in your residence in these extreme temperatures. Call (360) 693-5220 today without delay!

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