Temperatures in La Grange can be brutally cold during the winter months. The last thing you need is to feel chilly air blowing through your vents from your furnace. If you’re experiencing this problem, don’t panic. Here’s what you should know about a furnace that’s blowing cold air.
Your Heating System’s Fan Is Running
Take a look at your thermostat. If the fan is set to “On,” it will blow cool air. Change your thermostat to the “Auto” setting. This will cause the fan to blow only when the furnace is in use.
The Flame Sensor on Your Furnace Isn’t Clean
Check your flame sensor for dirt and grime. If it isn’t clean, call an HVAC technician at Pro Temp of Illinois in Westchester, IL, to clean your system.
Your Furnace Needs to Be Replaced
Older furnaces can break down at any moment. A common sign that you need a new furnace is that it’s blowing cold air. Furnaces are designed to last an average of 15 years.
Your Furnace’s Air Filter Is Clogged
Here’s why clogged air filters are a problem for your furnace. They restrict airflow. When airflow is restricted, your furnace can overheat. After a furnace overheats, it will produce cold air.
Your Furnace Needs to Be Warmed Up
When the temperature drops, your furnace requires more energy to get started. It’s not unusual for a furnace to blow cool air for a few minutes until it warms up.
The Pilot Light Needs to Be Relit
Older gas furnaces only work when the pilot light is lit. If the pilot light goes out multiple times, contact an HVAC technician for assistance.
The truth is there are several things that cause a furnace to blow cold air. The only way to diagnose the problem is to have a professional HVAC technician inspect it.
Looking for a reputable HVAC company that serves the Greater La Grange area? Call to schedule an appointment with Pro Temp of Illinois. Our services include heating and cooling installation, maintenance, design and duct cleaning.