Furnace Blowing Cold Air – Is It Time to Call a Repairman?

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  • 21 Dec, 2022
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Furnace Blowing Cold Air – Is It Time to Call a Repairman?

There’s a chill in the air so you turn on the heat only to find your vents blowing cold air. While you expect cool air when it’s hot, you want warm air when it’s cold outside. Cold air coming from your vents could indicate a serious problem. When you find your furnace blowing cold air into your home, should you call a technician? And who’s the best HVAC repairman to call?

Aspire Heating & Cooling is a veteran-owned HVAC repair and installation company with a team of NATE-certified technicians. We offer personalized solutions to get your furnace running at peak efficiency. With several service plans available and comprehensive solutions for repair and quality installation, we want to be your HVAC company. Now, we have 2 locations for your convenience, we proudly serve Winston-Salem, Mocksville, Clemmons, Advance and Bermuda Run areas.

What to Check First

Before you call a repairman, there are some easy things you can check yourself. First, look at your thermostat to make sure it’s set on “auto”.  The fan will run only when the furnace is heating the air when set the thermostat is set to “auto.” Whereas, the fan will run continuously when it is set to “on,” even when the furnace isn’t heating the air.

Typically, a dirty air filter can cause many problems, including your furnace blowing cold air. Too much dirt in your filter will clog it, restricting the flow of air. Restricted airflow can cause overheating thereby triggering a safety switch turning your furnace off. How often you should change your air filter depends on several factors. These include the number of people/pets in your household as well as the type of air filter you use. Most manufacturers recommend a minimum of changing the air filter every 30-60 days.

Finally, check your ductwork. Even small cracks in your ducts may cause cold air to mix with the warm air. While larger cracks will result in complete loss of warm air. In general, most ductwork lasts between 10-15 years before it begins to deteriorate. If your ductwork is nearing that age you may want to consider replacing it.

Gas Furnaces

Although you may have a gas furnace, part of your system is electrical. Your thermostat as well as ignition, valve and blower motor all require electricity. Therefore, something as simple as a tripped breaker could be causing cold air blowing out your vents into your home.

Therefore, check to make sure you don’t have a tripped breaker inside your electrical panel. Generally, when you’re running too many appliances, the breaker trips, stopping the flow of electricity. Even if your furnace runs on electricity, it’ll have a separate circuit breaker. Thus, the fan could run without the furnace operating.

One more thing to check is your pilot light. Older gas furnaces have them and it’s important to check to make sure it’s still lit. There could be several reasons why your pilot light goes out including drafts, dirty orifice, or bad thermocouple. Whereas if you have a newer gas furnace, your flame sensor could be dirty. When the flame sensor becomes coated with dust, it cannot correctly take readings and will shut down the furnace.

Time to Call a Repairman

If you’ve checked all you can and your furnace is still blowing cold air, it’s time to call a repairman. There are some things best left to the professionals no matter how easy YouTube makes it look. Whether you have a gas or electric system, there are dangers involved in trying to repair it yourself. The cost of hiring a repairman is offset by peace of mind for a quality repair by a certified technician.

Nevertheless, if your HVAC system is over 10 years old, you may want to consider upgrading to a new system. Most homeowners put off upgrading their heating system for as long as possible, often waiting for complete failure. However, this normally ends up costing more because as performance declines, monthly energy bills rise.

Although new HVAC systems are expensive, Aspire Heating & Cooling offers financing options to make them affordable. We are a primary lender providing favorable interest rates and extended repayment terms. For as low as $60 per month, you can have a brand new HVAC system.

Furnace Blowing Cold Air Out Your Vents

The cold winter weather is not far off! If you notice your furnace blowing cold air out of your vents, don’t wait until subzero temperatures arrive. Call the HVAC technicians Winston-Salem residents trust, Aspire Heating & Cooling. Servicing all makes and models of heating equipment, our NATE-certified technicians can handle any problem.

So, give us a call today at 336-281-0047 to set up an appointment to look at your system. We’ll assess your problem and provide a solution with honest and upfront pricing.

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