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Why Won’t My Furnace Ignite?

We’re going through an unusual warm spell for February, but it’s sure to get cold again before winter ends! When the temperature drops outside, the last thing you need is for the furnace to stop working.

Before you call a professional in for heating repair, consider these possible reasons why your furnace won’t light:

The Furnace Needs Power

The first step is to make sure the heater is receiving electrical power. Even if you have a gas furnace, electrical igniters and other inputs need electricity to work. Check the circuit breaker box and reset any that have tripped. Then, check next to the furnace for a switch and flip it on.

The Thermostat Is Set Incorrectly

If a power failure interrupts a programmable thermostat’s settings, it may reset to default. Make sure the thermostat has power, is turned on, and set to “heat” mode. Turn the temperature up and see if the furnace ignites.

The Pilot Light Has Gone Out

While many heaters today start up with an electronic ignition, yours may feature a pilot light. As a safety feature, your furnace won’t light if the pilot is out. It’s relatively easy to relight this on your own, but if you don’t feel comfortable, call a heating technician for help.

The Condensate Pan Is Full

Modern high-efficiency furnaces are called condensing furnaces because they produce mildly acidic condensation when they operate. If the condensate drain is clogged, the collection reservoir can fill with liquid, activating the float switch and shutting off the furnace to prevent water damage. Check the condensate pan, empty it, and unclog the drain if you can.

The Air Filter Is Clogged

If the furnace was just running, but now it won’t turn back on, a clogged filter may have caused it to overheat. Check the filter, replace it if it appears dirty, and try running the furnace again in a few minutes.

The Gas Supply Is Shut Off

Gas furnaces need a steady flow of fuel to ignite. Check the gas shut off valve and make sure it’s in the open position. Check other gas-fired appliances around your home, such as the stove or water heater, and see if they’re working. If not, it looks like you’ve found the problem, and it’s time to call the gas company.

Schedule Furnace Repair in Central Jersey

If your furnace won’t light even after attempting these troubleshooting tips, schedule a furnace repair without delay. For service in Monmouth, Middlesex, Mercer, or Ocean County, contact Arctic Air Conditioning today!

Testimonials
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”From the first time Arctic Air came to our home to give an estimate, we knew we had chosen a quality company for the job. From the staff at the…”

- Tom Hipper
5 Rating |

”We always have great service with Arctic Air. They are fast, dependable and a pleasure to deal with. The technician, Sal Delre, was outstanding, understanding and so helpful! Special thanks…”

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”Thank you so much Jaime! Now we have heat. Arctic Air is highly recommended, they came right away when I called them to fixed my furnace.”

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”Artic has been our HVAC company for years. Totdsay's annual visit was special thanks to Kyle the technician/service specialist. AMAZING!”

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”I️ had Connor from Artic come out and give me a price along with talking me through the whole process. The installers were great and did a terrific job. We…”

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”Sal provided outstanding service. We scheduled a tuneup on our furnace and he was pleasant as was any of the staff we came in contact with. Very easy company to…”

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”Excellent, fast reliable service. Have been a customer for over 20 years and ave never had a problem. Would definitely recommend!”

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”Our service person was Dan who arrived promptly to work on our heat pump, which was not preforming well. Unlike other service techs from other companies he thoroughly analyzed the…”

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”Our service person was Dan who arrived promptly to work on our heat pump, which was not preforming well. Unlike other service techs from other companies he thoroughly analyzed the…”

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”Arctic Air is the best HVAC company! Their techs, especially Jesse, are so nice and extremely professional. I’m so glad I chose them to install my Lenox system in 2010…”

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”I can't say enough about the team we had come out and help us. We had a 70 year old house with a rigged ac/furnace system. Nothing about it was…”

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”Christian recently came to our house to install a part and we were very satisfied with his work. He is very professional and personable. He did a great job. Herb,…”

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”Excellent and professional service. My tech Jesse was friendly and personable. I highly recommend Arctic Air and Jesse.”

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”Jesse was so professional and very nice. We had maintenance done on our heater and he fixed a man nor issue we had and did not leave until everything was…”

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”They are extremely courteous and professional.”

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”Very pleased with Jesse's service to our furnace.”

- matt
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”Kyle was professional and polite. Work was done in a reasonable time and looks fine.”

- Daniel Ostrowski
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”Jesse was prompt, courteous, knowledgable and got the job done.”

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”Kyle was knowledge and courteous...he gave me history about my unit and facts... a good job overall!”

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”Always good customer service Arctic Air; Jesse was on-time and did a great job.”

- Leon Paley
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”The team that installed our new central air was very professional and polite. They did a excellent job. The price was reasonable. Highly recommended!”

- Joseph Burek
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