How to Fix a Furnace That Wont Stay Lit

A damaged furnace is tedious to handle. There are several reasons this might happen, but one of the most frequent is a problem with the burners or associated components.

Newer systems don’t count on pilot lights to keep the furnace going. Instead, they use electronic ignition. If this ignition stops working correctly, the burners can’t function like they should.

When your gas furnace is functioning correctly, here’s how it should work:

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

If something goes wrong during this procedure, your furnace will shut down for safety reasons. Or it might shut down a few minutes into heating because it’s overheating.

Several of these problems can be repaired on their own, but others require professional servicing. When you need the finest furnace repair in Concord, get in touch with our heat Experts at 925-384-1303. We work with all brands and our services are backed by a 100% Satisfaction Guarantee for a year.*

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

1. Faulty Flame Sensor

Your furnace’s flame sensor is a safety feature that informs your furnace when gas is ignited. If the sensor is dirty or faulty, it might work inconsistently or not at all. Even if the sensor is operating as normal, incorrect positioning leaves it unable to detect the flame to begin with. While you may try troubleshooting and cleaning this sensor right away, trusting an expert like Freschi Service Experts will guarantee the problem is handled quickly and correctly.

2. Overheated Furnace

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

3. Thermostat Malfunction

Your thermostat informs your furnace when it needs to heat your house. When it’s not working like it should, your furnace will struggle to keep your home warm. This can be a battery or electrical problem, depending on what model of thermostat you use. We recommend referring to your owner’s manual or manufacturer’s website for specific troubleshooting information. If you still can’t get yours working, contact our Experts at 925-384-1303. We’ll identify the problem right away and can replace your thermostat, if needed.

Several of these issues, including a dirty flame sensor or an overheated furnace, are due to a lack of proper furnace maintenance. It’s highly beneficial to have this service done annually, because it might help stop breakdowns, boost your furnace’s energy efficiency and could even make it survive longer.

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

Eventually, your furnace can’t work like it used to in spite of attempts to repair or maintain it. When the time comes, consider Freschi Service Experts and our quality furnace replacement in Concord. We offer some of the top furnace brands, like Lennox®, to offer you affordable, energy-efficient heating options.

When you’re considering replacing your furnace, consider signing up for our Advantage Program™. Buying 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 small monthly fee. There’s no down payment or installation charges, and you get to keep any beneficial rebates.

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

Don’t struggle with interruptions to your comfort for a second longer. Give Freschi Service Experts a call at 925-384-1303 to schedule an appointment today. Whether you want 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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