On a cold wintery day, the last thing you want to discover is that your furnace is blowing cold air. There are several reasons why this could suddenly be happening.
Why is your furnace blowing cool air, and what can you do about it? Keep reading to learn more:
- Is Your Thermostat Switched to “On”?: If your thermostat is set to “on,” it allows the fan to continually blow. It doesn’t mean the furnace is heating the air, though. To prevent this, place the thermostat switch on “auto,” and the fan will run only if the unit is producing heat.
- Has Your Pilot Light Gone Out?: There are a few reasons your pilot light may have gone out. It could be from a power outage or a source of wind that has doused its glow. Or the flow of gas could be obstructed. Either way, the light needs to be relit.
A professional HVAC technician can check your pilot light to make sure the gas valve switch is on and that the pilot light is clean. - Do You Have Leaky Air Ducts?: Cold air from your attic can make its way into your ductwork through any holes or leaks. Eventually, this cold air will work its way into the rooms of your house. Hiring a professional to repair these leaks will restore the comfort of your home and keep your furnace from working so hard.
- Is Your Furnace Overheating?: Over time, your air filter will become dirty and clogged, leading your furnace to overheat. That’s when the safety feature goes to work. Furnaces have a limit switch that turns the furnace burners off and prevents more heat generation. The fan will continue to run, allowing the unit to cool to a safe temperature.
When your unit repeatedly overheats, it can cause damage to the heat exchanger, leaving you with an expensive repair. One of the best ways to prevent this problem is to change the air filter every 30 to 60 days. You should also have professional heating maintenance regularly to keep your equipment in peak condition.
Call A Professional If Your Furnace Is Blowing Cold Air
Call the experts at True Comfort Heating, Cooling and Plumbing if your furnace is blowing cold air. We’ll find out why and resolve your problem.
