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Why Doesn’t My Furnace Stay On?

Is your furnace running improperly? One of the most common furnace problems is when the burners won’t stay lit. This causes the furnace to fire up, heat for a few minutes, and turn back off before it has had time to reach the target temperature. Below are a few possibilities why your furnace doesn’t stay on and what to do about it.

4 Possible Reasons Your Furnace Isn’t Staying On

  • Malfunctioning thermostat: The thermostat may not be calibrated correctly, meaning the furnace thinks it has reached the desired temperature after running for only a few minutes. To find out, replace the thermostat with a cheap model. If the problem stops, you have pinpointed the problem. If not, return the new thermostat and continue troubleshooting.

 

  • Bad thermocouple: This heat sensor installed next to the pilot light serves the important purpose of closing the gas valve if the pilot light goes out so gas doesn’t fill your home. However, a malfunctioning thermocouple may lose the ability to sense heat from the pilot light, causing it to close the gas valve at random. If your furnace doesn’t stay on, check the pilot light. If the pilot light won’t stay lit, a bad thermocouple could be to blame. You may need a professional to come take a look and replace the malfunctioning part.

 

  • Full condensate pan: Newer condensing furnaces generate condensate, which drips into a pan and drains away. If the drain line becomes clogged, the pan may begin to fill up. Once the rising liquid hits a sensor, the furnace will automatically shut off to prevent the condensate from spilling over the edge. Check the condensate pan for this problem. If the drain is clogged, insert a straightened wire hanger to clear it out. Sending a bleach mixture or algaecide treatment down the drain may help prevent future clogs.

 

  • Blower motor not running: When the furnace runs, place your hand over a supply register. If you feel hot air exiting the vent, this means the motor is running like normal. If not, the motor has lost power for some reason and the furnace is switching itself off to prevent the heat exchanger from overheating. The fan relay might be broken or the blower motor belt might be worn out. A furnace repairman is your best bet for fixing these problems.

For more help figuring out why your furnace doesn’t stay on, contact Arctic Air Conditioning and schedule a furnace repair in Central Jersey!

Testimonials
5 Rating |

”Arctic Air responded promptly to my call and acted professionally in providing me with top quality service. I have been a loyal customer for many years and have been very…”

- Carol Rosenfeld
5 Rating |

”Always a good experience when I call and when the service people arrive. This visit I had Jesse to service my unit. He was very polite and did a great…”

- Donna Croce
5 Rating |

”We've had great experience with Arctic Air for both heating and cooling. Highly recommend.”

- Annmarie Deangelis Vivo
5 Rating |

”Arctic Air services our heating and cooling systems every year. They also do any repair work on the systems. We recently had them do our annual heating check-up. Kyle, the…”

- Mary Kohoot Cembor
5 Rating |

”Great service”

- hardik panchal
5 Rating |

”From the sale by Ron to the installation my experience was amazing! Ron explained the options to me and ensured I would love the product and professional installation. The installers…”

- donna pabon
5 Rating |

”We have been customers of Arctic Air for several years. Recently, we had a problem with our furnace. The issue always occurred when the technician was not present and ran…”

- Dorothy Schneider
5 Rating |

”They just did major work in my house.. very punctual ,extremely clean and very professional .. it is always nice to see a and hire a well run successful family…”

- Michael Duru
5 Rating |

”Jesse Evert was the Arctic Air Conditioning tech who arrived to service my equipment. Jesse was professional, knowledgeable and most polite. He explained what he was doing as he went…”

- Flo Anderson
5 Rating |

”after 36 years, never had a complaint. all the staff and service people are polite, understanding and excellent at their craft”

- Harold Zoberg
5 Rating |

”New HVAC (gas furnace and central air) - Great price. Excellent installers (very professional). Top notch customer service. Would not hesitate at all recommending them.”

- Myname Here
5 Rating |

”Been using Arctic Air for over 20 years. Very professional staff and always able to get fast appointments even during peak times. Team is very knowledgeable from AC to Heating…”

- Michael P.
5 Rating |

”Extremely happy and satisfied with Arctic Air!! The President Ross reached out to me within minutes of my post and was at my house within a half an hour to…”

- Nermeen Elhusseini Hamido
5 Rating |

”We had no heat last night and this morning. Both furnaces did not respond to raising the thermostat setting. We called Arctic Air who had a Technician at our house…”

- pete triozzi
5 Rating |

”I wanted to say thank you Arctic Air conditioning team (Connor, Jim, Mike) and tell you how happy I am with the work you guys did in my house. Right…”

- Suresh Reddy Deva
5 Rating |

”Jesse was informative, competent and friendly and a pleasure to work with. Truly an exemplary service person and an asset to Arctic Air.”

- John LaCarrubba
5 Rating |

”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…”

- Navin Pramanand
5 Rating |

”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.”

- Chona Trinidad-Petzold
5 Rating |

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

- Jim Mc Connell
5 Rating |

”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…”

- Darren Ghaffari
5 Rating |

”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…”

- Michelle Hermelee
1 Rating |

”Had a full a/c heat system installed only 6 years ago and had problems every year. From sticky gas valve that took 3 different technicians to figure out, to broken…”

- Brian K.
5 Rating |

”Had my heating and air conditioning unit installed by Arctic almost 6 years ago. I also use them twice a year for the unit tune up. I have never had…”

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5 Rating |

”Arctic Air is one of the best companies around. I've tried other companies but no one compares to Arctic. They are always on time and provide the best, most thorough…”

- Donna West
5 Rating |

”Sal was awesome!!! Thorough, informative, helpful, and extremely nice. I highly recommend Arctic Air!!!”

- Valerie Deantonio
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