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As mother nature attempts to move on from winter and roll into spring, your furnace will still play a factor. Depending on those “in-between” days where it feels like the beginning of winter all over again, you may come across some common furnace problems that require heating service. A lot of the time, however, homeowners don’t realize the problems their furnace might be having. A lot of the problems then go unnoticed and your home becomes prone to higher heating costs. An outdated or struggling furnace means more wasted energy, which ultimately hurts your bank account. So, here are some common furnace problems you might encounter as a homeowner and how you can assess the problem immediately so that you can receive help fast!

Why Learn from ARCO Comfort Air?

No one enjoys being stuck with an outdated furnace or dealing with any particular furnace problems. It’s hard to stay up to date with it and keep good maintenance, which is why ARCO Comfort Air is so effective in handling this. ARCO Comfort Air takes pride in great customer service and bringing customers high-quality repairs and installations. When it comes to your furnace, we know how important it is to maintain it and avoid any furnace problems that might come your way. Especially when the winter months are so inconsistent, it’s important to stay on top of your furnace’s performance in case you need it. ARCO Comfort Air cares about the efficiency of your home which is why we laid out these common furnace problems so you’re fully aware of what to look for.

Furnace Problems That Need Immediate Attention

Faulty pilot lights are one issue that deserves immediate attention. Along with a lot of other mechanical parts that have to do with your furnace, the pilot light could easily malfunction bringing zero heat to your home. There are two types of systems today generally found in furnaces, intermittent pilot light, and hot surface ignition. The hot surface ignition systems use resistance heating which is electronically controlled to light the gas burner. However, if you have an intermittent pilot light, that will also be controlled electronically but uses an electrical spark to ignite the gas pilot light. It will then light the main burners.

Broken Fans and Defective Blowers

Broken fans are another cause for concern when it comes to furnace problems. If the blower turns on and never turns off, there might be a problem with the limit control switch on the furnace fan. You will more likely need to replace the limit control switch if this is the case. If you have a problem with the blower motor, the furnace can turn off and on with too much frequency. Talk about exhausting. If you come across this issue, you can try to oil the lubrication points on the blower motor with lightweight oil. Otherwise, you should call a professional, especially if that quick-fix doesn’t work out.

Poor Electrical Connections

Poor electrical connections are another issue a lot of homeowners deal with that affects their furnace. Throughout time, vibrations that come from running a furnace can loosen internal wiring. This means one wire will become loose, causing a shortage. It can take a good amount of time to find the loose wire, but replacing it will easily fix the issue. Inspect your furnace regularly to avoid this issue.

Clogged Air Filters and Air Leaks in Your Home

Replacing your furnace filter should be a monthly routine. This way, you’re extending the life of your furnace and at the same time avoiding potential furnace problems. It also helps with energy efficiency and saving money on your utility bill. Dirty filters reduce airflow, causing your furnace to work that much harder to generate warm air throughout your home. If you have air leaks in your home as well, your furnace will work a million times harder. It will cost you so much more on your energy bills as well. One tip is to go through your home and seal up any cracks around the windows or doors to ensure that the air in your home stays put.

Damaged Coils and Your Thermostat

Hundreds of tiny little air passages are made up from the coils located inside your furnace. If one of the passages become clogged or restricted in any way, the air flow will be affected, which hurts the efficiency of your furnace. Thermostats obviously play a huge role in how your furnace operates as well. It determines and controls how much and when heat is produced. Problems with your thermostat can lead to the fan forcing no heat, intermittent heat, or no heat at all.

Keep proper maintenance of your furnace to avoid future furnace problems—call ARCO Comfort Air today for all HVAC services!

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What Are Customers Are Saying

Great service. Recieved a quote and the issue fixed same day and very friendly and professional servicemen. Would highly recommend and affordable.

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Victoria Philpotts

Victoria Philpotts

September 29, 2026

Andrew is great. We have had a lot of good technicians service us, but we've never had a person so thorough and explain everything so clearly. He also has a really great personality.

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Frank

Frank

September 29, 2026

Jesse was awesome, and did a great job on my PM service. I would highly recommend them and him!

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Richard Gutch

Richard Gutch

September 28, 2026

We contacted Arco Home Services for plumbing repairs. Jacob Adams was our tech. Jacob showed up on time and gave us an estimate for the multiple items we wanted done. He was professional, knowledgeable, and personable. He explained all steps and issues that were encountered and spent close to a day and a half completing the many repairs we requested. He knew what he was doing and worked diligently to make sure that the work was done timely and correctly. I can say it was a pleasure to have him complete the work we needed which included installing a new utility tub with new faucets and shut off valves, new bathroom faucet, installing a new sink with faucet and all plumbing in the second bathroom, repairing a toilet flange and reseating the toilet along with multiple other time consuming items to bring the plumbing in our older home into good working order. I can highly recommend Jacob's work and would ask for him again if I needed any additional repairs done. Thank you Jacob for a job well done.

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R. E. Tesmer

R. E. Tesmer

September 26, 2026

Andrew came out did an outstanding job serving my furnace. I had horrible experiences in the past with a different technician, but Andrew came in and turned my opinion around. Great job !

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Tina Andears

Tina Andears

September 25, 2026

We had a limb fall on our main line and Domenic came out and replace the entire unit. Evan came out and replaced a basement unit. Both were very efficient and polite.

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Annette

Annette

September 25, 2026

Andrew came out and performed yearly maintenance on my furnace. He arrived on time and was very efficient. He informed me my system was in good condition and I am prepared for winter. Highly recommend!

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Kathryn Pierce

Kathryn Pierce

September 25, 2026

The ARCO rep Andrew, that took care of the A/C inspection was knowledgeable, professional and courteous! He answered questions completely!

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Giyate Giyate

Giyate Giyate

September 25, 2026

Kellyed Reyes and Shaun McAlpin were great! Assessed the issue, and shared with me my options.

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Hallie Johnson

Hallie Johnson

September 24, 2026

Arco representative Andrew Corrothers came out to inspect our AC unit and did a great job detailing the issues with our unit. Andrew also provided informative options for our unit and potential replacement options. Definitely a job well done by Andrew. Note: There was no charge for visit, part of my service contract.

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John Alexander

John Alexander

September 24, 2026

Arco is amazing. Our furnace was not working and he had it running withing minutes of being here. Highly recommend.

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Bridgett Jackson

Bridgett Jackson

September 23, 2026

Shauvine & Shaun were Fantastic communicators, arrived promptly & diagnosed my issue quickly and accurately - I will Definitely call your company again because of Them - 5 stars

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Al Brooks

Al Brooks

September 23, 2026

Today I had a visit from Eugene Scott from ARCO. He was very professional and friendly. Very informative and a pleasure to have in my home.

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Thomas Noyes

Thomas Noyes

September 23, 2026

Shaving and Shaun did a great job. They were very prompt and completed the job in good time and very efficiently.

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Aldon George

Aldon George

September 23, 2026

Cliff was awesome. Explained everything and look forward to working with him in the future.

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matt mckenzie

matt mckenzie

September 22, 2026

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