Help, My Furnace Is Blowing Cool Air!

If your furnace is blowing cool air, it can be alarming. But don't worry! Our skilled team of technicians at Reliable Heating & Cooling has proudly served Staten Island, NY, and the surrounding area for over 15 years. When you need a furnace maintenance company, you can count on us to care for your home's needs. As a local business, we deeply understand the unique HVAC needs of our community and how crucial it is to your comfort. Let's discuss some of the reasons your furnace might be blowing cool air and how we can help restore your home to a toasty oasis from winter's chill. 

Thermostat Issues

You might be experiencing cool air blowing from your furnace because of thermostat issues. One of the quickest solutions is to check whether your thermostat is toggled to the "On" or "Auto" setting. If it is set to the "On" position, your furnace will run continuously throughout the day. If the indoor temperature stays above your thermostat's set point, it will blow cool air instead of heating it.

Clogged or Dirty Air Filter

Have you checked your furnace's air filter? A clogged or dirty filter restricts the amount of airflow necessary for your heating system to function properly. Without adequate airflow, the temperature inside the furnace rises, forcing the limit switch to shut down the heating cycle.

Remember, regular maintenance of your furnace's air filters is key to preventing issues like cool air blowing. A good rule of thumb is to replace the air filter every few months. If you live in an area with a higher concentration of airborne pollutants, such as pet dander, pollen, and dust, it's best to change them more frequently. This simple step not only ensures optimal performance but also extends the life of your unit and reduces the need for repairs.

Inadequate Gas Supply

Attempting to fix these issues without professional help can be dangerous and may cause further damage to your heating system. As a safety feature, your furnace is designed to shut off if it receives an insufficient amount of gas to the unit. The issue may be due to a faulty furnace gas valve or the gas supply line. This problem requires a certified technician to repair. Contact the professionals at Reliable Heating & Cooling immediately to resolve the issue. We have the necessary tools and training to safely and efficiently perform furnace repair services as this requires. 

Pilot Light Problems

If your furnace was manufactured before 2010, it likely has a gas pilot light instead of a modern electric furnace ignition. The furnace pilot light is a small flame that can accidentally become extinguished. When this happens, the furnace loses its ability to heat up until the flame is relit. 

Damaged Ductwork

Another common cause of furnaces blowing cool air is that the ductwork has become damaged over time. When cracks and holes form in the ducts, warm air can escape through the gaps. This is another red flag that you need to contact our friendly team at Reliable Heating & Cooling for furnace maintenance and repairs.

Our team of qualified heating repair professionals strives to provide every customer with the highest quality HVAC service and is prepared to meet your home's heating and cooling needs. Call us today at 347-934-8649 to schedule services. We look forward to serving you!