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Why Is My Furnace Blowing Cold Air?

Winter in New Jersey can be harsh. Is your furnace keeping up with your heating demands? If you hear the fan running constantly but you still feel chilly, place your hand over a few supply registers around the house. If the air feels cold, you have a problem! Here are five possible reasons why your furnace is blowing cold air and when to schedule furnace repair to fix the problem.

The Thermostat Is Set to “On”

Thermostats have two fan settings: “on” and “auto.” When it’s set to “on,” the blower continuously runs, even when the burners aren’t lit. There’s nothing wrong with this setting, but the air coming from supply registers will feel cold at times. To save on operating costs, set the thermostat to “auto” so the blower only operates when the furnace is running.

The Pilot Light Is Out

Older furnaces rely on a constantly burning pilot light to ignite the burners. If your home feels chilly even though the furnace is running, check the pilot light to see if it has burned out. You can relight it if you feel comfortable doing so. Otherwise, schedule furnace repair and let a professional handle it.

The Flame Sensor Is Dirty

This prevents the burners from staying lit, so the air feels warm at first and then goes cold. For a safe and proper flame sensor cleaning, call in a professional technician.

There’s a More Technical Issue

The above problems are quite easy to recognize. If you can’t see a problem but your furnace is clearly blowing cold air, a more technical issue—such as a faulty igniter or malfunctioning circuit board—could be to blame. HVAC professionals can diagnose and fix the issue.

The Ductwork Is Leaking

There might not be anything wrong with your furnace at all. Instead, the air may simply be cooling off by the time it exits the supply registers. Leaky ducts with no insulation can cause the air to lose a lot of heat, especially if your ductwork runs through the attic. Check any exposed ducts and if you see unsealed gaps, loose connections, or missing insulation, call a professional to fix the problem.

Schedule Furnace Repair in Central Jersey

If you attempt the troubleshooting tips here but find that your furnace still blows cold air, contact Arctic Air Conditioning today to schedule repair. The faster you act, the sooner your home will feel comfortable again!

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”Just had my heating unit and humidifier serviced for the winter. Nick was efficient and professional. It was another pleasant service experience with Arctic. They have been our heating and…”

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”Kudos to Dave Oliveras.... great service and customer relations!!! We are now ready for the winter!”

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”Been a customer for over 20 years. Never had any issues with Arctic. They show up when they say they will. The techs are friendly, courteous, never leave a mess…”

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”From Day one Five Years Ago, Arctic Air has continually provided quality service.Technicians and Staff are courteous, well informed, and always there to answer your questions.”

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”Quality work, great to deal with, every tech is knowledgeable and friendly. Today I had Nick and he was great. I have had Michael in the past and he was…”

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”Sammy Castro was professional,knowledgeable and thorough. Would and have recommended attic air!!!”

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”Excellent service! This company goes above and beyond from customer service(Gina), to the sales people, to the installers. They even do follow up the next day. Top notch! I highly…”

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”excellent prompt service”

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”They installed my heating unit and air conditioning unit. I have a winter and summer start up . The technicians make sure everything is working well and change all filters”

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”Their knowledge and courteous service men.”

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”Love these guys. They're always here when they say they'll be. They're courteous and considerate. We had them install a full central air system in our house and our investment…”

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”I've been using Arctic Air since living in Manalapan. They are always available when I need them. Appointments are never a problem.”

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”We have been loyal Arctic Air Conditioning clients for over 30 years. This is the company you want to call for your heating and air conditioning needs. David Oliveras was…”

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”Yes I've been using them for ten years. The Best.”

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”Very thorough, courteous and efficient”

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”Extremely courteous, fast & David knows his business.”

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”Jessie came for our seasonal maintenance visit. I mentioned a problem we were having with our new wood floors with regard to humidity levels. Jessie spent lots of time adjusting…”

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”Great customer service and professionalism.”

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”Very pleased with the service received by Artic Air. Kyle was courteous and thorough in his work performance.”

- James Mount
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”I have used Arctic Air Conditioning for many years and many residences to service my air and heating units. They have never disappointed me with their quality and honest service.…”

- Jim Minch-Klass
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”The service man was friendly and took time to let us know exactly what he was doing. Very good service call.”

- Joan Gleason
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”Jessie came to service our furnace. He was on time, polite and professional. He was so quick and explained that everything was fine with our furnace. Arctic Air is fabulous....we…”

- Marta Kowaliw
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