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Why Is My Furnace Working Not Working?

Furnace not working? It could be due to thermostat issues, dirty filters, pilot light problems, or electrical faults. Check these common causes to troubleshoot and stay warm—when in doubt, call a pro!
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Your furnace is one of the most important pieces of equipment in your home. It keeps you warm and cozy all winter long! But what do you do if it stops working? Don't worry, we're here to help. In this blog post, Southeast Heating & Cooling will share four common problems that can cause your furnace to malfunction. We will also provide tips on how to fix them. So, whether your furnace is making strange noises, or you just can't seem to get it to turn on, read on for help!

Dirty Filter

The most common cause of a malfunctioning furnace is dirty or clogged filters. This is why it's so important to change your filter every few months. A blocked filter restricts airflow, which can lead to decreased performance and even permanent damage to your system. To ensure optimal performance, you should check your filter every month and replace it whenever necessary.

Thermostat Issues

If your thermostat isn't working properly, it can disrupt the temperature inside your home. Check that the batteries are fresh and that the temperature setting on the thermostat is correct for the season. Also, make sure nothing is blocking the sensors in the thermostat from accurately reading the room’s temperature.

Pilot Light Problems

If your furnace won't turn on, it could be due to a malfunctioning pilot light. Check the pilot light to make sure it is burning blue and adjust it if needed. If you can't get the pilot light to stay lit, call in a professional HVAC technician for help.

Ignition System Issues

The ignition system includes the spark igniter and gas valve that work together to ignite the fuel within your furnace. Sometimes these parts become dirty or corroded, which can cause them to malfunction and keep your furnace from turning on properly. Have an experienced technician inspect this part of your system periodically to ensure optimal performance.

These are just some of the most common problems that can cause your furnace to malfunction.

If you're still having trouble getting your furnace to work, don't hesitate to call Southeast Heating & Cooling or fill out our online contact form. We will be able to diagnose the problem and suggest a solution that fits your needs.

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"Great service and very nice. They showed up next day and fixed everything without me having to pay more than I could afford and also helping to ensure we had air this weekend. Trey did an awesome job."
Amanda W.
"Absolutely stellar work. Trey is super friendly, very knowledgeable and an extremely hard worker. Can always count on him to get the job done right the first time!!!"
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"Brian came out the same day and diagnosed our problem. He had the parts he needed on hand. He was very knowledgeable and professional. We will definitely use this company again."
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"Jo was so knowledgeable and had so many great ideas on how to improve my homes efficiency! He took his time going over everything to make sure he was able to are all my concerns! I can't wait to get started implementing his ideas."
Carolyn G.
"Amazing service. This company is so responsive and professional. Russell came out to do our summer maintenance. He was very informative and very professional. I would recommend this company for all of your HVAC needs."
Michelle A.
"Brian is the best in the business! Extremely trustworthy and does amazing work! Has been handling my families HVAC for years now."
Eric H.
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