furnace blowing cold air

There is nothing worse than turning the heat on in your home only to have it quickly turn off. This is especially frustrating when the furnace has a hot surface but isn’t supplying heat to your home. Moreover, not only is this annoying, it can be downright dangerous if you can’t get the heat going. When a furnace ignites then turns off shortly thereafter, the problem is usually related to one of six areas.

Troubleshooting Tips When a Furnace Ignites Then Turns Off

If your furnace seems fine when turned on, but then it goes off, these are the things to examine:

Control Board

One very important part of a furnace is the control board. It is responsible for regulating the power sent to the parts of the furnace. If the furnace only runs for a little while, it could be due to a faulty control board.

Pressure Switch

A defective pressure switch could also be the problem with a furnace that won’t stay lit. This switch becomes active when it senses enough air flow to continue ignition. Therefore, if there isn’t adequate air flow, the switch won’t work, and the furnace will go out.

Flame Rollout Switch

The flame rollout switch monitors the heat of the burners. Air needs to get to the burners to open the flue to release the heat. So, if this does not happen, the flame rollout switch will shut down the furnace so it doesn’t get too hot.

Flame Sensor

Another reason why a furnace ignites then turns off could be related to the flame sensor. This key component senses when the flame is on. It then alerts the control board to begin blowing warm air. Often, dust or dirt covers the sensor. If this happens, the sensor won’t detect the flame, and the result is the furnace shuts down.

Draft Inducer Motor

The draft inducer motor draws air into the furnace through the burner. When this happens, the pressure switch reacts and notifies the control board. If the motor isn’t working as it should, air will not get into the furnace.

Air Flow

Often a problem with a furnace is due to poor air flow. If a furnace is in a closet or cramped room, it may not have enough space. Air needs to flow all around it in order to function properly, including above and below. In many cases, the solution to this problem is to move the furnace to a more optimal location.

Have the Pros Check Your Furnace

As you can see, most of these issues require a certified technician’s expertise. Only an experienced HVAC technician can trace the problem, determine the cause and make the repair or replace a part.

In fact, having a regular maintenance plan for your HVAC equipment is the best way to prevent major problems. By checking the system at regular intervals, a technician will find minor problems before they become expensive issues. Aspire has two options from which to choose. Either one provides two tune-up visits per year. This preventive measure will ensure that your system will be ready for any extreme weather.

Why Choose Aspire?

Spring may be right around the corner, but there is still a lot of winter left. If your furnace isn’t keeping you warm, get in touch with Aspire Heating & Cooling. We will send out one of our NATE-certified technicians to give your furnace a thorough inspection. No matter what the problem may be, we will make sure you get a quality repair. Homeowners know they can trust us with their heating needs because we are reliable and offer upfront pricing.

We also provide 100 percent guarantees for our work. In addition, we offer financing options. This provides help when the time comes to replace your system or you require a major repair. We work with our customers to ensure they get the most favorable interest rates and repayment terms. For a free quote, call us at 336-281-0047 or send a message through our online contact form.

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