How to Fix a Furnace That Wont Stay Lit

A faulty furnace is tedious to deal with. There are many reasons this may happen, but one of the most likely is a problem with the burners or associated parts.

Newer systems don’t count on pilot lights to keep the furnace lit. Instead, they utilize electronic ignition. If this ignition fails, the burners can’t function like they should.

When your gas furnace is running properly, here’s how it should run:

  • The thermostat directs your furnace to activate.
  • Your furnace’s draft inducer fan starts to bring fresh air toward your furnace.
  • The gas valve opens to move gas into the pilot burner.
  • An electronic spark lights the pilot light.
  • The flame sensor informs your furnace that the pilot has been lit.
  • The gas valve transports gas to the principal burners, which are lit by the pilot light.
  • Your furnace then sends warm air across your home via ductwork.

If something goes wrong during this sequence, your furnace will turn off for safety reasons. Or it might stop a few minutes into heating because it’s getting too hot.

A number of of these issues can be fixed on their own, but others require professional assistance. When you are looking for the fastest furnace repair in West Chester, reach out to our furnace Experts at 484-401-7577. We repair all brands and our work is backed by a 100% Satisfaction Guarantee for a year.*

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

1. Faulty 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 faulty, it may work inconsistently or not at all. Even if the sensor is operating normally, poor positioning leaves it unable to recognize the flame to begin with. While you can attempt troubleshooting and cleaning this sensor on your own, contacting an expert like Wesley Wood Service Experts will make sure the problem is handled promptly and correctly.

2. Furnace is Too Warm

Your furnace contains built-in safety procedures that shut it off if it gets too hot. One of the most typical causes is a filthy filter. We recommend reviewing your air filter each month. If you can’t see light through it, change it.

3. Thermostat Isn’t Working Right

Your thermostat tells your furnace when it is time to heat your home. When it’s not running correctly, 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 own. We recommend checking your owner’s manual or manufacturer’s website for useful troubleshooting information. If you still can’t get yours working, contact our Experts at 484-401-7577. We’ll discover the cause quickly and can replace your thermostat, if necessary.

A number of these issues, like a dirty flame sensor or an overheated furnace, are a result of a lack of consistent furnace maintenance. It’s highly beneficial to have this service completed annually, because it could help stop breakdowns, increase your furnace’s energy efficiency and may even make it last longer.

We Have You In Good Hands When It’s Time for Furnace Replacement

With enough time, your furnace can’t work like it’s supposed to regardless of attempts to repair or maintain it. When the time comes, reach out to Wesley Wood Service Experts and our professional furnace replacement in West Chester. We work with some of the number one furnace brands, like Lennox®, to offer you affordable, energy-efficient heating systems.

When you’re looking into replacing your furnace, consider enrolling in our Advantage Program™. Replacing a furnace can cost you thousands of dollars out of pocket. As an Advantage member, you’ll receive a new furnace for just one affordable monthly fee. There’s no down payment or installation costs, and you get to keep any helpful rebates.

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

Don’t fret about interruptions to your comfort for a moment longer. Give Wesley Wood Service Experts a call at 484-401-7577 to request 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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