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April 9, 2018

Why Is My Furnace Blowing Cold Air?

why is my furnace blowing cold air

You count on your furnace to keep you warm and cozy on chilly nights, so dealing with a malfunctioning furnace can be very frustrating. If you’re wondering, “Why is my furnace blowing cold air?” this blog may help you uncover the reason.

Unfortunately, there are many potential issues that can cause a furnace to blow cold air, so it’s most efficient and accurate for an HVAC technician to diagnose your problem in person. If you’d like to discuss the problem with an HVAC comfort specialist, contact Gold Star Services.

We understand how important it is to get your furnace up and running as quickly as possible. We offer emergency HVAC services, and more than 92% of our calls are completed on the same visit. Call 1-302-485-1649 to learn more.

Why Is My Furnace Blowing Cold Air?

The reason why your furnace is blowing cold air may be simple enough to diagnose on your own. But in certain cases, the problem is more technical and requires a service call from a professional.

Here are a few common reasons why your furnace could be blowing cold air:

  1. Your Thermostat’s Fan Is Set to “On”

Is your furnace’s blower constantly running? If so, you might just need to switch the fan setting from “On” to “Auto.” When the fan is set to “Auto,” the blower will only switch on when the furnace is running.

  1. The Pilot Light Is Out

If you have an older furnace and it’s blowing cold air, it’s possible that the pilot light has gone out. If you relight the pilot light but it goes out repeatedly, you’re going to need an inspection from an HVAC professional. Call Gold Star Services at 1-302-485-1649.

  1. The Flame Sensor Is Dirty

Is the air warm at first but then turns cold quickly? If so, your flame sensor may need to be cleaned. The gas burner won’t stay lit if the flame sensor is dirty.

  1. Your Furnace Has Overheated

If your furnace switches between blowing hot and cold air but then stops working entirely, it could be overheating. The most common culprit behind an overheating furnace is a dirty air filter. You can try changing the air filter and seeing if your furnace starts blowing warm air again. If that doesn’t work, it’s time for a service call.

  1. A More Technical Issue Is to Blame

There are many other reasons why your furnace could be blowing cold air. If none of the solutions listed above seem to work and you’re still wondering, “Why is my furnace blowing cold air?” call the pros at Gold Star Services.

Customer satisfaction is our top priority. We schedule our service calls within a convenient timeframe, and call ahead so you’ll know exactly when our technicians are going to arrive. Call 1-302-485-1649 to schedule a visit.

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