Ice on Your HVAC Unit? Here’s What It Means

hvac maintenance jacksonville

Good HVAC maintenance helps address issues before they become a problem. Yet, even with the best maintenance, sometimes issues can creep up on homeowners. One of these issues is ice on your HVAC unit.

Ice can build up in your HVAC system causing damage and poor functionality. Anytime you experience ice on your HVAC unit, contact J&W Heating and Air in Jacksonville, Florida to schedule HVAC repair. Don’t let a problem go unaddressed, which can cause even more damage. Take action to fix the issue right away!


Reasons for Ice on Your Air Conditioning Unit

Two main problems cause ice to form on an air conditioning unit. Both problems can lead to additional damage to your HVAC unit and should be addressed immediately. If you notice ice in or around your HVAC unit, shut the unit off and inspect the problem. Regardless of which problem is causing the ice to build up, it won’t repair itself.


1 – Refrigerant Leak

When your air conditioning unit doesn’t have enough refrigerant, then your unit will freeze up. Refrigerant is a compound that works together with the evaporator coils and compressor to create the cool air from your AC unit. Without refrigerant, the air will not cool properly.

Refrigerant never runs out if your AC unit is working correctly. The only time the refrigerant in your AC unit gets low is if there is a leak. This means that if the refrigerant is low, merely adding more refrigerant won’t fix the problem.

In order to remedy low refrigerant, a HVAC professional must repair the leak. Once the leak is repaired, the refrigerant can then be refilled. If everything else in your HVAC system is working properly, this should stop the ice from forming in your HVAC system.


2 – Blocked Evaporator Coils

The job of the evaporator coil is to house refrigerant and manage heat transfer as air passes through the system. The inside of the evaporator coil is very cold. The blower moves air over the evaporator coils where the air is cooled before it flows into your home through the air vents.

Because the temperature inside evaporator coils is so cold, if the air flow is blocked, the system will freeze. If it freezes, air cannot move through because it is blocked with ice. This means the air coming out of your vents will be very low flow.

Air flow can be blocked for different reasons. First, dirty coils may block air flow. Also, a dirty air filter can stop or block air flow. A broken or damaged fan or coils also leads to blocked air flow. Regular cleaning and maintenance of your HVAC system helps reduce the amount of dirt in your unit, which helps avoid frozen evaporator coils.


What to Do if You Have Ice on Your HVAC Unit

The first thing you should do if you have ice on your HVAC unit is turn off your unit. Even though your system may continue to run, allowing it to stay on can lead to costly damage. Don’t make this mistake!

Second, you should call your local HVAC professionals. At J&W Heating and Air, we offer HVAC repair to Jacksonville, Florida and the surrounding areas. Our expert technicians are trained to identify the core problem and implement the correct repair. For example, we will repair the leak before we add refrigerant.

While you wait for the HVAC professionals to arrive, you can act. Start by uncovering both the supply vents and return vents. The supply vents are the vents where air comes out of your HVAC unit into your home. The return vents are the vents that pull air from your home back through your HVAC system. Both need to have air flowing freely in order for your system to work properly. Move furniture, curtains and other décor so that the vents are not blocked.

A dirty air filter leads to many different HVAC issues. You can let your HVAC professional change or clean your filter, or you can change or clean the air filter yourself. Either way, if your HVAC system is freezing or having other problems, changing the air filter is a good idea.


Stop the Freeze

Don’t ignore ice on your HVAC system. It will not repair itself. In fact, it will most likely lead to additional damage. If your HVAC unit is over 15 years old and you’re experiencing ice on your system, consider replacing your unit.

Especially if your unit uses R-22 refrigerant, Freon, it’ll be hard to replace as new regulations phase it out of use. It may be most cost effective to update your HVAC unit with a new, energy efficient model. The HVAC professionals at J&W Heating and Air work with our clients to offer the best advice for your home, including when a new system is a better solution than costly repairs.


Contact the experts at J&W Heating and Air in Jacksonville, Florida for HVAC repairs, maintenance, inspections and replacements. We have over 50 years of experience providing heating and air conditioning solutions for our local clients. We offer experience you can trust!

Get a Free Estimate

J & W Heating and Air
Based on 1050 reviews
powered by Google
Stacy Russell
Stacy Russell
15:10 02 Jun 20
I will be recommending J&W to my friends and family. They were very professional and on time. Did a very well job in... a quality manner. Dustin, Mark, and Robert. Worked very well together and was in and out with no cleanup for me to do. Thanks so much for getting my home back to a cool more
Phillip Wallace
Phillip Wallace
13:46 27 May 20
Just had an entirely new, full HVAC install done at our old house in Riverside, which was a fairly big job. Brian and... Will did the installation, and were awesome. There was going to be issues leveling the air handler in the attic, so they moved it to a new spot and hung it instead, getting new parts/changing the plan on the fly. We're much happier with this new setup and location of the air handler. I really appreciated this, their professionalism/thoroughness, and flexibility. Brian and Will worked super-hard, and double-checked everything once the job was done. Would use this company more
Louis Kincheloe
Louis Kincheloe
21:18 01 May 20
Two installers here early this morning. Worked all day. Very professional, extremely well mannered and quick to answer... all my questions. They are Dustin and Robert. Both men went above just installing my new unit, they were personable and knowledgeable in what they were doing. I was surprised when I found out these two hadn't been working that long together. They worked extremely well together. I highly recommend this two more
Shirley Davis-So Brooks
Shirley Davis-So Brooks
18:10 01 Jun 18
Very pleased with installation of York A/C Heating unit. Jason Bottoms and Jason Flatearth were professional, ... arrived on time and completed the job in a timely manner. The unit looks great. They upgraded and repaired everything that needed it. Great more
James Ponciano
James Ponciano
22:46 03 May 18
A snake crawled into my outdoor condenser and stopped my 16 year old Trane last week on Thursday. The power surge took... out my blower unit circuit board and the motor. I called J&W and Rob was over within two hours of my call. I was spec'd a new York 17 seer system and it was up and running on Monday. Technicians Jason and Brian arrived promptly and every facet of the installation was thorough. When completed, I would not of even known they were there except they left my garage cleaner! Thanks J&W!read more
See All Reviews

Skip to toolbar