3 Explanations Why Your Furnace Isn’t Staying Lit and How to Repair It

A malfunctioning furnace is tedious to handle. There are lots of reasons this may happen, but one of the most likely is a problem with the burners or associated systems.

Newer furnaces don’t require pilot lights to keep the furnace going. Instead, they utilize electronic ignition. If this ignition malfunctions, the burners will not perform like they should.

When your gas furnace is performing normally, here’s how it should run:

    • The thermostat informs your furnace to run.
    • Your furnace’s draft inducer fan turns on to pull fresh air through your furnace.
    • The gas valve opens to direct gas into the pilot burner.
    • An electronic spark starts the pilot light.
    • The flame sensor informs your furnace that the pilot has been ignited.
    • The gas valve transports gas to the central burners, which are lit by the pilot light.
    • Your furnace then provides warm air across your house via ductwork.

If something breaks down during this procedure, your furnace will turn off for safety concerns. Or it might turn off a few minutes into heating because it’s overheating.

Several of these problems can be resolved on their own, but others need professional assistance. When you need the finest furnace repair in the U.S., call our heat Experts at . We service all brands and our services are supported by a 100% Satisfaction Guarantee for a year.*

Here are a few of the most common reasons why your furnace isn’t staying lit and what to do about it.

1. Faulty Flame Sensor

Your furnace’s flame sensor is a safety feature that notifies your furnace when gas is ignited. If the sensor is dirty or damaged, it might work intermittently or not at all. Even if the sensor is running like it should, misaligned positioning leaves it unable to identify the flame at all. While you could attempt troubleshooting and cleaning this sensor right away, hiring a professional like Service Experts Heating, Air Conditioning & Plumbing will ensure the problem is taken care of promptly and correctly.

2. Furnace is Too Warm

Your furnace utilizes built-in safety functions that force a shutdown if it gets especially hot. One of the most common causes is a dirty filter. We recommend inspecting your air filter monthly. If you can’t see light through it, change it.

3. Thermostat Malfunction

Your thermostat commands your furnace when it should heat your house. When it’s not running properly, your furnace will require more energy to keep your home warm. This can be a battery or electrical problem, depending on what model of thermostat you have. We encourage checking your owner’s manual or manufacturer’s website for needed troubleshooting instructions. If you still can’t get yours working, get in touch with our Experts at . We’ll find the problem swiftly and can replace your thermostat, if necessary.

Some of these issues, including a dirty flame sensor or an overheated furnace, are a result of a lack of routine furnace maintenance. It’s extremely helpful to have this service done annually, because it may help prevent breakdowns, improve your furnace’s energy efficiency and might even make it live longer.

We Have You Protected When It’s Time for Furnace Replacement

With enough time work like it should in spite of attempts to repair or maintain it. When the time comes, consider Service Experts Heating, Air Conditioning & Plumbing and our top-notch furnace replacement in the U.S.. We work with some of the number one furnace brands, such as Lennox®, to offer you affordable, energy-efficient heating systems.

When you’re contemplating replacing your furnace, consider taking advantage of our Advantage Program™. Getting a new furnace can cost you thousands of dollars out of pocket. As an Advantage member, you’ll receive a new furnace for just one low monthly fee. There’s no down payment or installation charges, and you get to pocket any beneficial rebates.

What’s even better is that Advantage members don’t pay a cent for repairs** or maintenance. If disaster strikes, you’re guaranteed a fast response with 24/7 priority service. You’ll also enjoy discounts, no hidden charges and several other benefits.

Don’t fret about interruptions to your comfort for a moment longer. Give Service Experts Heating, Air Conditioning & Plumbing a call at to schedule an appointment now. Whether you are looking for repairs or if it’s time for a new furnace, we guarantee your satisfaction.

*Not applicable to the Advantage Program. See your signed Advantage Program agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions. **See your signed Advantage Agreement for details.

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© 2023 Service Experts, Service Experts Heating & Air Conditioning, and the Service Experts logo and design are registered trademarks of Service Experts LLC and used under license by SE Canada Inc. All Rights Reserved. *Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.