3 Reasons Why Your Furnace Isn’t Staying Lit and How to Solve It

A malfunctioning furnace is a hassle to deal with. There are multiple reasons this might happen, but one of the most frequent is a problem with the burners or relevant parts.

Newer furnaces don’t count on pilot lights to keep the furnace lit. Instead, they utilize electronic ignition. If this ignition fails, the burners can’t perform like they do normally.

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

    • The thermostat informs your furnace to activate.
    • Your furnace’s draft inducer fan begins to spin in order to pull fresh air toward your furnace.
    • The gas valve opens to move gas into the pilot burner.
    • An electronic spark starts the pilot light.
    • The flame sensor informs your furnace that the pilot has been lit.
    • The gas valve transports gas to the primary burners, which are lit by the pilot light.
    • Your furnace then distributes warm air into your home via ductwork.

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

Some of these malfunctions can be resolved on their own, but others require professional assistance. When you want the fastest furnace repair in the U.S., call our heat Experts at . We have experience with all brands and our services are supported by a 100% Satisfaction Guarantee for a year.*

Here are several of the most common reasons why your heating isn’t staying lit and what to do to fix it.

1. Malfunctioning Flame Sensor

Your furnace’s flame sensor is a safety component that informs your furnace when gas is ignited. If the sensor is dirty or malfunctioning, it may work intermittently or not at all. Even if the sensor is working like it should, misaligned positioning leaves it unable to detect the flame at all. While you may try troubleshooting and cleaning this sensor on your own, trusting an expert like Service Experts Heating, Air Conditioning & Plumbing will guarantee the problem is handled quickly and correctly.

2. Furnace is Too Hot

Your furnace uses built-in safety procedures that shut it off if it gets especially hot. One of the most frequent causes is a dirty filter. We recommend reviewing your air filter monthly. If you can’t see light through it, swap it out.

3. Thermostat Malfunction

Your thermostat directs your furnace when it is time to heat your residence. When it’s not running like it should, your furnace will struggle to keep your residence warm. This can be a battery or electrical problem, depending on what model of thermostat you use. We suggest opening your owner’s manual or manufacturer’s website for necessary troubleshooting details. If you still can’t get yours working, reach out to our Experts at . We’ll pinpoint the cause quickly and can replace your thermostat, if that is required.

Several of these issues, including a dirty flame sensor or an overheated furnace, are a result of a lack of consistent furnace maintenance. It’s vital to have this service performed yearly, because it might help prevent breakdowns, boost your furnace’s energy efficiency and might even make it live longer.

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

Sooner or later work like it should despite attempts to repair or maintain it. When the time comes, trust Service Experts Heating, Air Conditioning & Plumbing and our quality furnace replacement in the U.S.. We partner with some of the number one furnace brands, including Lennox®, to offer you affordable, energy-efficient heating equipment.

When you’re considering replacing your furnace, consider taking advantage of our Advantage Program™. Buying a new furnace can cost you thousands of dollars out of pocket. As an Advantage member, you’ll be given a new furnace for just one small monthly fee. There’s no down payment or installation expenses, and you get to pocket any helpful rebates.

What’s even better is that Advantage members don’t pay a cent for repairs** or maintenance. If disaster hits, you’re supported with 24/7 priority service. You’ll also receive discounts, no sneaky charges and many other benefits.

Don’t put up with interruptions to your comfort for a minute longer. Give Service Experts Heating, Air Conditioning & Plumbing a call at to schedule an appointment right away. Whether you need 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.