Restoring a Furnace That Wont Stay Lit

A faulty furnace is a hassle to deal with. There are multiple reasons this may happen, but one of the most likely is a problem with the burners or relevant systems.

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

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

  • The thermostat tells your furnace to run.
  • Your furnace’s draft inducer fan starts to draw fresh air through your furnace.
  • The gas valve opens to move gas into the pilot burner.
  • An electronic spark ignites the pilot light.
  • The flame sensor tells your furnace that the pilot has been lit.
  • The gas valve directs gas to the principal burners, which are lit by the pilot light.
  • Your furnace then distributes warm air into your residence via ductwork.

If something malfunctions during this process, your furnace will turn off for safety reasons. Or it might shut down a few minutes into heating because it’s getting too hot.

Several of these problems can be repaired on their own, but others require professional help. When you need the finest furnace repair in Tempe, reach out to our heating Experts at 623-243-4517. We service all brands and our work is ensured by a 100% Satisfaction Guarantee for a year.*

Here are several of the top reasons why your furnace isn’t staying lit and what to do moving forward.

1. Malfunctioning 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 malfunctioning, it may work inconsistently or not at all. Even if the sensor is functioning like it should, misaligned positioning leaves it unable to recognize the flame to begin with. While you can attempt troubleshooting and cleaning this sensor right away, contacting a pro like Bob Brown Service Experts will guarantee the problem is taken care of swiftly and correctly.

2. Furnace is Too Hot

Your furnace has built-in safety features that force a shutdown if it gets dangerously hot. One of the most common causes is a filthy filter. We suggest evaluating your air filter each month. If you can’t see light through it, replace it.

3. Thermostat Malfunction

Your thermostat informs your furnace when it needs to heat your home. When it’s not working like it should, your furnace will struggle to keep your house warm. This can be a battery or electrical issue, depending on what kind of thermostat you use. We recommend checking your owner’s manual or manufacturer’s website for required troubleshooting information. If you still can’t get yours working, reach out to our Experts at 623-243-4517. We’ll uncover the cause swiftly and can replace your thermostat, if necessary.

Some of these issues, such as a dirty flame sensor or an overheated furnace, are a result of a lack of routine furnace maintenance. It’s vital to have this service completed annually, because it can help minimize breakdowns, improve your furnace’s energy efficiency and might even make it last longer.

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

Inevitably, your furnace cannot work like it should despite attempts to repair or maintain it. When the time comes, reach out to Bob Brown Service Experts and our excellent furnace replacement in Tempe. We offer some of the top furnace brands, including Lennox®, to offer you affordable, energy-efficient heating equipment.

When you’re thinking about 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 receive a new furnace for just one affordable monthly fee. There’s no down payment or installation charges, and you get to hold on to any helpful rebates.

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

Don’t worry about interruptions to your comfort for a second longer. Give Bob Brown Service Experts a call at 623-243-4517 to request an appointment today. 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.

Contact Us