Heater Blowing Cold Air? How To Solve This Problem

Have you ever turned on your heater, only to notice cold air blowing through the vents? Calling in an HVAC technician to repair the unit might be your first move. Before you do that, you can start by understanding why your heater is malfunctioning.
Some issues are easy to fix on your own, while others require help from an HVAC pro.
Common Reasons Why Your Heater Is Blowing Cold Air
A frequent complaint of homeowners during the colder months is noticing that their heater is blowing cold air. There are typically eight reasons why this happens.
- The heater is still warming up
- The pilot light is out
- The heater is not powerful enough
- Incorrect thermostat setting
- Dirty air filter
- Blower motor problems
- Cracked heat exchanger
- Blocked or leaky ductwork
Let’s dive into each of these issues.