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How to Fix a Frozen Air Conditioner

Your AC is an important part of your home—especially as things start heating up in New Jersey! So, when something goes wrong with your system, it can have a big impact on your day-to-day life. One of the more common causes of AC failure is ice. We’re not talking about a winter wonderland, we mean a frozen air conditioner—this is something that can go from a minor inconvenience to a major problem very quickly if not addressed. That’s why Arctic Air Conditioning is here to help you figure out how to diagnose the cause of your frozen air conditioner and what you can do to fix it!
Before we get started, let’s take a look at the top three reasons why your AC could freeze over:

  1. Poor airflow – Limited airflow can be caused by many things, but most often the culprits are clogged, dirty air filters and poorly sized ducts. Dirty air filters block the flow of air through your ducts and evaporator (the portion of your AC that is inside the house), and can cause the temperatures in your air conditioner to drop below freezing, resulting in frozen evaporator coils and a nonfunctioning AC. Poorly sized ducts are equally problematic when it comes to proper airflow in your home. Air ducts that are too big are unable to adequately push the air through your home while undersized ducts can’t circulate enough air—much like trying to breathe through a straw.
  2. Low refrigerant – The balance of your refrigerant needs to be perfect in order for you air conditioner to work efficiently—or at all. When your refrigerant levels are incorrect (due to a leak or some other factor) you could be left with a frozen air conditioner.
  3. Thermostat temperature – The refrigerant running through your evaporator coils is approximately 40 F, so if you turn the temperature down too long on your thermostat, you could be subjecting your evaporator coils to temperatures well below freezing.

Diagnose and Fix Your Frozen Air Conditioner

Now that you know the three most likely causes for your frozen air conditioner, you can start determining which one it is. The first thing you should do, though, is turn off your air conditioner. This will give your AC a chance to thaw out and reduce the risk of damage to your system—we recommend laying down a few towels around your air conditioner to soak up any water.

The next thing you should do is check your air filters—if they look dirty or clogged, it’s time to replace them! Generally, your air filters should be changed every one to three months, depending on how often you’re running your air conditioner. After your AC has completely thawed, try turning it back on and see if changing the air filters helped. If after a few hours you’re still dealing with a frozen air conditioner, it’s time to move onto the next step, which is checking your thermostat temperature.

Make it a habit to never set your thermostat much below 70-72 degrees because when you do, the refrigerant in your evaporator can reach levels below freezing. If your thermostat is set too low, try turning up the temperature and waiting—if your AC doesn’t freeze again, then you’re all set!

If neither of these home remedies fix you frozen air conditioner, it’s time to call an HVAC professional because your problem is most likely stemming from a lack of refrigerant, poorly sized ducts, or some other faulty part (such as a broken blower fan). One of the air conditioning experts at Arctic Air Conditioning can come out and diagnose the cause of your frozen evaporator coils and help determine the best course of action to get things running smoothly again.

When you need air conditioning service in New Jersey, contact Arctic Air Conditioning! We can help you with your frozen air conditioner so you don’t have to suffer through the heat!

Testimonials
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”Jesse was prompt, courteous, reliable and did a really good job!”

- Clark Herman
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”Prompt, efficient and thorough at a very fair price. Couldn’t ask for more!”

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”Technician (Kevin Duffy) did an outstanding job troubleshooting and then correcting the problem. He was very professional, knowledgeable and courteous . He cleaned up after the repair and explained what…”

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”Very professional. Jesse was very professional and polite. We round recommend Arctic Air as we feel they were honest and professional. Arrived at the allotted time and confirmed apply.”

- Leslie Rosenthal Kohn
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”Technician was very professional and knowledgeable. H explained the findings to me very thoroughly.”

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”We are very pleased with Artic Air. Jesse Evert was the technician who came to our home twice. Very professional, polite and knew his product. They have always arrived at…”

- Leslie Kohn
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”Jesse was on time, he was actually early. When he got here, he introduced himself and I explained my problem. He gave my A/C a complete examination and explained that…”

- michael
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”All was good! Upon his arrival, Jesse, explained everything about what this service call involved and what he was going to do. He then gave a detailed explanation following his…”

- lisa
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”Arctic Air is by far the best place I have seen. My install of the HVAC system was flawless! The technicians were so well versed, and so respectful of my…”

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”Matt was professional and knowledgeable. fixed our problem quickly!”

- Alok Saksena
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”Nice man, got the job done and our unit up and running in no time!”

- James Doria
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”Robert was knowledgeable, on time, and just overall great. Thanks for the fix!”

- Marina G
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”Jesse was very polite and knowledgeable. He answered all my questions and provided options to address my AC issue. So happy to have properly working AC and will definitely use…”

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”Tony was amazing. So kind and patient. Made me feel extremely comfortable. Very much appreciate the work he did in our home. Thanks again Tony for an interesting day.!!”

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”Attic air installed a central air conditioning unit in my home today They arrived around 9:00am and were don by 2:30pm They were clean and neat Continued working I didn’t…”

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”Kevin was great. He explained everything that needed to be done. Kept us in the loop so to speak. Could not ask for anyone better!”

- Ed Russin
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”We bought a new house and as luck would have it the AC went in the first few weeks. The Arctic Air Conditioning team was quick to come out and…”

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”Again, Arctic Air did not disappoint! The experience from start to finish was first class, professional and efficient. The crew was thorough in its planning of the installation and thoughtful…”

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”I have used arctic air now on two seperate occasions. Each time a different technician . The reason why that is important, because they both were AWESOME. They do not…”

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”Excellent service. Technician was professional, candid, and efficient.”

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”The whole crew was awesome!! Thank you very much Artic Air.”

- Gary Brandspiegel
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”My air conditioning unit stopped working in 90 degree weather. Needless to say that it became very uncomfortable to live in my home. I googled “air conditioner repair” and scrolled…”

- HammRtrini
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”Great professional well done job by Dan. Thanks”

- Robert Contreras
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