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Can a Dirty Filter Stop a Furnace from Working in Savannah, GA?

Published October 14, 2024
Can a Dirty Filter Stop a Furnace from Working in Savannah, GA?

When it comes to maintaining your home’s heating system, one of the simplest yet most important tasks is changing your furnace filter. Savannah homeowners, rely on their furnaces to keep their homes warm during the winter, but many people don’t realize how much a dirty filter can impact their furnace’s performance. In fact, something as straightforward as a clogged air filter can be the reason your furnace stops working altogether.

At Galbreath Heating & Air, we understand the vital role furnace filters play in keeping your system running smoothly. In this guide, we’ll explore the ways a dirty filter can lead to furnace malfunctions, how often you should change your filters, and the consequences of neglecting regular filter maintenance. We’ll also provide tips on how to spot a clogged filter before it causes major problems.

Can a Dirty Filter Stop a Furnace from Working?

Yes, a dirty filter can stop your furnace from working properly—and in some cases, it can cause a complete shutdown. Your furnace depends on a clean air filter to maintain proper airflow throughout the system. When the filter becomes clogged with dirt, dust, and debris, the furnace has to work much harder to push air through. Over time, this can cause overheating, restricted airflow, and other problems that can prevent your furnace from operating efficiently.

Let’s take a closer look at why dirty filters are such a common cause of furnace issues.

The Impact of Dirty Filters on Your Furnace

A clogged air filter can lead to a number of furnace problems that directly affect your home’s comfort and your system’s efficiency. Here are some of the most common issues caused by dirty furnace filters:

  • Overheating: Furnaces rely on proper airflow to regulate temperature. When airflow is restricted by a dirty filter, the system may overheat and trigger safety mechanisms that shut it down to prevent damage.
  • Inconsistent Heating: Dirty filters block airflow, making it harder for your furnace to evenly distribute warm air throughout your home. This can result in cold spots in certain rooms, leaving your home less comfortable.
  • Increased Wear and Tear: When your furnace has to work harder to push air through a clogged filter, it puts additional strain on key components like the blower motor. Over time, this extra effort can lead to premature breakdowns and expensive repairs.

How Often Should You Replace Furnace Filters?

To avoid these issues, it’s important to change your furnace filter on a regular basis. At Galbreath Heating & Air, we recommend the following replacement schedule based on the thickness of your filter:

  • 1- to 2-inch filters: Replace every 1 to 3 months.
  • 3- to 4-inch filters: Replace every 6 to 9 months.
  • 5- to 6-inch filters: Replace every 9 to 12 months.

However, these are just general guidelines. If you have pets, suffer from allergies, or live in an area with a lot of dust, you may need to change your filters more frequently. Always check the condition of your filter at the start of each month and replace it if it appears dirty.

Signs of a Clogged Furnace Filter

If you’re unsure whether your furnace filter needs replacing, keep an eye out for these signs:

  • Poor Indoor Air Quality: If you notice an increase in dust, allergens, or respiratory issues among family members, it could be a sign that your furnace filter is clogged and unable to trap contaminants effectively.
  • Reduced Airflow: A noticeable drop in the amount of warm air coming through your vents is a clear indicator of restricted airflow due to a dirty filter.
  • Higher Energy Bills: When your furnace has to work harder to compensate for a clogged filter, it consumes more energy, which can result in higher utility bills.
  • Frequent Furnace Cycling: If your furnace is turning on and off more often than usual, a dirty filter could be the culprit. This “short cycling” can cause your system to wear out faster and increase the likelihood of breakdowns.

Consequences of Not Replacing Your Furnace Filter

Neglecting to replace your furnace filter can lead to more than just minor inconveniences. Over time, a dirty filter can cause significant damage to your system, leading to costly repairs or even the need for a complete furnace replacement. Here are some of the potential consequences:

  • System Overload: Without proper airflow, your furnace may overheat or shut down completely, leaving your home cold and uncomfortable.
  • Blower Motor Damage: The strain caused by pushing air through a clogged filter can lead to a malfunctioning blower motor, requiring expensive repairs or replacement.
  • Heat Exchanger Damage: A clogged filter can trap heat inside your furnace, leading to potential damage to the heat exchanger—a critical and costly component of your system.

Continue reading: Can A Cracked Furnace Be Repaired?

Preventative Maintenance and Professional Support

At Galbreath Heating & Air, we believe that regular maintenance is key to preventing major furnace issues. By replacing your air filter on a regular basis and scheduling annual tune-ups, you can keep your furnace running efficiently and extend its lifespan.

If you’ve been experiencing problems with your furnace or suspect a dirty filter might be the cause, don’t hesitate to reach out to our team. Our expert technicians can provide a thorough inspection and any necessary repairs to keep your furnace running smoothly throughout the cold winter months in Savannah.

Contact Galbreath Heating & Air for Furnace Repair in Savannah, GA

If you’re unsure whether a dirty filter is behind your furnace problems or if your furnace isn’t working properly, Galbreath Heating & Air is here to help. As a trusted HVAC company serving Savannah, GA, we specialize in furnace repairs, maintenance, and filter replacement. Keep your home comfortable and your furnace in top shape by scheduling a service appointment with us today.


Last updated on December 30, 2024
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About The Author
Steven Galbreath

Steven Galbreath is the General Manager of Galbreath Heating & Air and was recently recognized as one of the Top 20 Under 40 HVAC Professionals by the Conditioned Air Association of Georgia.

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We have had a wonderful experience working with Galbreath and every single person from the company we have worked with. We feel well taken care of and confident we made the right decision on our new unit with all the information given. Our family was made comfortable and cool and we are pleased to continue to be customers in the future.
I have had nothing but good experiences with Galbreath. They are prompt, knowledgeable and courteous. That is why I renew my service agreement every year. Call them, you won't be disappointed.
Steven was very respectful and kept us informed of his findings.
Good experience with Galbreath Heating and Air, diagnosed issues and repaired in a timely manner, technician was on time, polite, clean and knowledgeable. James was great.
Gil was on time, took the time to troubleshoot the problem and quickly made the correction. The Galbreath service techs and customer service team are top notch. Not thrilled with the Lennox HVAC system as I’ve had more issues in 5 years than I have had with all other systems (Trane) combined, over the previous 35 years.
All employees are extremely courteous, polite, and patient. Their processes from scheduling, estimates, services, and follow up are very transparent leaving no question your home will have all needs taken care of. Kevin completed my last service and was awesome
Steven, Kevin and Tyler were knowledgeable, friendly, efficient and trustworthy. We appreciate their professionalism and great service!
Quick help and showed up on the weekend to get our system up and running again
Great experience. Knowledgeable technician.
The tech was friendly and courteous. We have known Gill for many years and have always been very satisfied with his professionalism.
Galbreath came highly recommended. Great service. Enjoyed working with the team.
Great service
We received an estimate quickly. Very professional!
Brandon and Steve came to my house to fix my AC problem, and they did. They were very professional , respectful, and friendly. Explained what was happening and what they did to fix it. First time with this company and I am very very satisfied!
Had my regular semi annual visit from Galbreath and Sons today. As usual they were spot on arriving well within my scheduled appointment. Had my unit checked out service and done. I’ve been a Galbreath and Sons customer for many years and never experienced any thing less than excellent service.
James was very professional. He recommended a couple of things and I took his advice. He was very thorough. Thank you Galbreath Heating and Air!
Lucky to find a company this professional!
Brandon was awesome about addressing my concerns and explaining opportunities for my system to improve. I've always found Galbreath technicians to be friendly, prompt, and knowledgeable.
UPDATE: I have changed my 1 star to 4 stars. Since I wrote this review in January 2025, I have come to realize that our problem is not Galbreath but Lennox. Galbreath has given us excellent service fixing this problem every two months. However, the unit we bought is from Lennox and their customer reviews are 91% 1 star. Sadly, the problem continues and our HVAC is once again broken; it’s been exactly two months since the last time it broke.

Do not hire Galbreath Heating and Air! We have had nothing but problems with them. 15 months ago we purchased a $20,000 4 zone unit from them and it has been one problem after another. Every couple of months the unit breaks and we either have no heating or air, or it’s down to one zone. During one of their repairs they admitted that they had never replaced the wiring for the new unit and had left the old. They replaced it, however, that did not fix our issues. This morning I woke up to yet another breakdown and no heating. We are so sick of this problem. Perhaps we need to hire a lawyer and look into the GA lemon laws.
Made a Saturday visit and located problem right away. Technician was professional and friendly. Highly recommend !!
They were on time. Very, knowledgeable of the work. Explained everything. We were able to ask questions and received answers. I've had this service for 20 years. Always neat and clean.
Danny was on time, professional, explained what he was doing and found the problem within 10 minutes on site. Provided excellent service. Top notch company and ask for Danny. He is an excellent technician. Thank you!
As usual...super professional service and customer care. Highest rating!
Had them out weeks later for a repair. Again, super service!
Professional, competent above other competitors I have used.
Kevin Jackson and Aaron Dickerson did a great job servicing my HVAC today. They were kind, courteous, and didn’t waver under the discerning watchful eyes of my supervising dogs. LOL! They explained each step of the process very clearly and thoroughly. I am so pleased I made the switch to Galbreath!
As usual very professional and knowledgeable about equipment, and what’s going on, with solutions to repair or extend use. Communication throughout visit and made sure I understood what was said and needed. Galbreath put my new air unit in over 10 yrs ago and I’ve been with them ever since and into the future. I can’t remember the guy’s name but I will ask for him when I need service. Lifetime customer
Aaron gave outstanding customer service! Thanks, Aaron
My two AC units were over 17 yrs old. Both units stopped working.
After calling several companies to assess the issue, Galbreath was the only vendor that could come out the same day and didn't charge a same day upcharge. The tech asses both of the units and unfortunately, it was time to replace them. I accepted the assessment as I had been bandaiding for a while. Danny, came to the property and did a thorough airflow assessment, provided various options and wasn't pushy. I had 2 other companies that came out before Danny...all in the same day. They looked at the system and immediately started on the sales pitch. Was Galbreath the least expensive? Not at all, but I felt more comfortable with the walk through assessment that Danny performed vs the other two. Would I recommend? Absolutely. Also, customer service is huge to me. I can always reach someone at Galbreath if I have a question. That goes a long way with me.
Galbreath is always professional, on time, and does a great job. I am always pleased with their service and techs.
Service was good, but they annoy me with numerous emails, texts (like this one) and redundant appointment reminders. Less contact would be better.
What a relief to know your company exists and still have world class customer service. Unlike the majority of HVAC companies here in the Savannah, Georgia area, Galbreath Heating & Air are true professionals. During our recent cold snap, my furnace was not working. The very next morning after speaking to Rebecca Mr. Danny Shapiro (HVAC Tech) arrived and had my furnace up & running in no time. I didn’t have to wait two or three months like other companies would claim and was treated as customers should be treated. Mr. Shapiro inspected both furnace & A/C unit as a preventive measure to avoid immediate issues. Due to this awesome experience, I am going to be giving Galbreath all my HVAC business.
Very professional. Service guys are so nice and explain everything well.Galbreath can be proud of their crew.
I recommend this company to everyone, they are the best, the technician are very knowledgeable and professional, especially Brandon Richardson he is very knowledgeable and his suggestions are on points. Thank you Brandon.
Kevin Jackson contacted me prior to arriving for routine maintenance. He is a very professional, friendly technician who obviously loves what he's doing and is very knowledgeable about his trade. His attention to detail is precise and thorough. He explains everything in detail. He is a valuable part of your team. I would highly recommend your company.
James was so professional and friendly! He took time to explain everything and even called in assistance when he wasn’t sure. Even though it was much later than planned it was still such a great experience.
Really liked the tech explaining what he was doing and what it means. He was on time
Excellent Service. I highly recommend Galbreath Heating and Air.
Tyler was very thorough and informed us of all things that needed addressed! I would recommend Tyler to anyone who needs air conditioning service to call Galbreath . .Tyler also set us up to have our air conditioner repaired quickly ! Danny Shapiro came out the next day to address the problems with our air conditioner. Danny explained what was wrong and order the parts to make our air conditioner more efficient plus insulated the pipes and redid the vents and insulation! If you have any air conditioning issues ask for Danny Shapiro from Galbreath heating and Air.!!
I am very impressed with Galbreath heating and air. They give you reminders of their upcoming visit and a picture with a bio of your technician. The technician was very prompt and knowledgeable. He explained everything and even changed out our air filters. I give them an A+++
Came on the weekend. Very polite
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