3 Explanations Why Your Furnace Isnt Staying Lit and How to Solve It

A broken furnace is exhausting to deal with. There are multiple reasons this can happen, but one of the most common is an issue with the burners or associated systems.

Newer systems don’t count on pilot lights to keep the furnace ignited. Instead, they utilize electronic ignition. If this ignition is damaged, the burners will not function like they are supposed to.

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

  • The thermostat informs your furnace to activate.
  • Your furnace’s draft inducer fan begins to spin in order to draw 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 directs your furnace that the pilot is burning.
  • The gas valve moves gas to the principal burners, which are lit by the pilot light.
  • Your furnace then pushes warm air into your home via ductwork.

If something goes wrong during this procedure, your furnace will deactivate for safety concerns. Or it might shut down a few minutes into heating because it’s getting too hot.

Some of these problems can be handled on their own, but others need professional assistance. When you want the top furnace repair in West Palm Beach, contact our heat Experts at 561-629-1826. We repair all brands and our services are backed by a 100% Satisfaction Guarantee for a year.*

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

1. Dirty Flame Sensor

Your furnace’s flame sensor is a safety component that tells 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 working normally, poor positioning leaves it unable to sense the flame entirely. While you can try troubleshooting and cleaning this sensor by yourself, hiring a professional like Service Experts Heating & Air Conditioning will guarantee the problem is resolved swiftly and correctly.

2. Furnace is Too Warm

Your furnace contains built-in safety procedures that force a shutdown if it gets dangerously hot. One of the most frequent causes is a filthy filter. We encourage inspecting your air filter monthly. If you can’t see light through it, swap it out.

3. Thermostat Isn’t Working Right

Your thermostat directs your furnace when it is time to heat your house. When it’s not running properly, your furnace will struggle to keep your home warm. This can be a battery or electrical issue, depending on what kind of thermostat you have. We suggest checking your owner’s manual or manufacturer’s website for required troubleshooting details. If you still can’t get yours working, get in touch with our Experts at 561-629-1826. We’ll discover the issue right away and can replace your thermostat, if that is required.

Several of these issues, including a dirty flame sensor or an overheated furnace, are due to a lack of routine furnace maintenance. It’s important to have this service completed yearly, because it may help reduce breakdowns, boost your furnace’s energy efficiency and can even make it last longer.

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

Inevitably, your furnace cannot work like it should in spite of attempts to repair or maintain it. When the time comes, call Service Experts Heating & Air Conditioning and our professional furnace replacement in West Palm Beach. We partner with some of the top furnace brands, like Lennox®, to offer you affordable, energy-efficient heating systems.

When you’re looking into replacing your furnace, consider signing up for our Advantage Program™. Getting a new furnace can be thousands of dollars out of pocket. As an Advantage member, you’ll get a new furnace for just one small monthly fee. There’s no down payment or installation charges, and you get to keep any helpful 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 guaranteed a fast response with 24/7 priority service. You’ll also obtain discounts, no last-minute charges and lots of other benefits.

Don’t worry about interruptions to your comfort for a second longer. Give Service Experts Heating & Air Conditioning a call at 561-629-1826 to request 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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