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What to Do When Your AC Evaporator Coil Freezes

Frozen Evaporator Coil: What You Need to Know

Hey there, friends! Are you feeling hot and bothered because your AC is on the fritz? Well, you’ve come to the right place! Reliable Appliance & HVAC is here to help you with our expert knowledge about all things HVAC! Today, we’re talking about a common AC problem that can cause a lot of headaches: Frozen Evaporator Coils.

Let us tell you about our friend, Alice, who lives in a cozy single-family home in sunny California. Alice had recently purchased a major central AC and had been using it to keep cool on the hottest days of summer. But then, Alice noticed that the air coming from her vents wasn’t as chilly as it used to be. She had a feeling something wasn’t right, so she decided to give us a call.

After hearing Alice’s story, we dispatched our expert technician, Jack, to her location. Jack arrived promptly and after introducing himself to Alice, he got right to work. He asked Alice about any unusual sounds or smells that she might have noticed coming from her AC unit. Alice explained that the AC had been running non-stop and kept freezing up. Jack immediately ran a few quick diagnostics tests and identified the issue — the evaporator coil was frozen!

So, what is the evaporator coil and how does it freeze up? Great question! The evaporator coil is responsible for absorbing heat from the air blown over it by the fan. As the heat is absorbed, the refrigerant inside the coil cools down, and the air coming out of the vents in your home feels cold. However, if the refrigerant isn’t circulating properly, it can cause the evaporator coil to get too cold and freeze up. This can cause your AC unit to work harder than it needs to and may end up causing significant damage if left unchecked.

Jack recommended a full clean and check of Alice’s air conditioning unit, including the evaporator coil, and provided her with a quote. He also advised her to turn off the AC unit and to let it thaw out for at least 24 hours before turning it back on again. Alice agreed and we scheduled a time for Jack to come back and perform the service.

Jack returned to Alice’s house the next day and quickly got to work cleaning the evaporator coil, as well as the other components of her AC unit. After he was finished, he turned the unit back on and performed another round of diagnostics tests to ensure everything was running smoothly. Alice was thrilled to have her unit back to normal and kept raving about how cool and refreshing her home felt!

Now, we know what you’re thinking. How much is this going to cost? Well, at Reliable Appliance & HVAC, we don’t like to play games with prices. We pride ourselves on transparency and always provide a full breakdown of costs. Here’s what it looked like for Alice:

Part Name Brand Cost
Evaporator Coil Major Central AC $350
Labor Reliable $200
Materials Reliable $75
Total $625

“Wow! What a great price for such great service,” said Alice.

We couldn’t agree more, Alice! At Reliable Appliance & HVAC, we strive to provide exceptional service at affordable prices. So if you ever find yourself in a jam with your HVAC system, give us a call! We’ll be there to help you out, just like we helped our friend, Alice!


In the end, a frozen evaporator coil is a problem that requires professional attention. At Reliable Appliance & HVAC, we have the experience and expertise to diagnose and fix any HVAC issue. Remember, don’t let a frozen evaporator coil get you hot under the collar – call Reliable Appliance & HVAC and let us do the work for you!

Thank you for taking the time to read our article. We hope you found it helpful and informative. As always, if you have any questions or concerns, please don’t hesitate to reach out to us. We’re always here to help!

What to Do When Your AC Evaporator Coil Freezes
What to Do When Your AC Evaporator Coil Freezes
What to Do When Your AC Evaporator Coil Freezes

Tips from Local Appliance Companies and HVAC Technicians to Prevent Frozen Evaporator Coil Issues

Are you tired of dealing with frozen evaporator coil issues during the hot summer months? It’s not only frustrating, but it can also lead to costly repairs. Luckily, there are some simple preventive actions you can take to avoid this problem. We at Reliable Appliance & HVAC have compiled a list of recommendations from both manufacturers and local technicians to help you avoid a frozen evaporator coil.

Keep Your Air Filters Clean

One of the most common causes of a frozen evaporator coil is a dirty air filter. When the filter is clogged with dust and debris, it restricts the airflow over the evaporator coil. This leads to a drop in temperature, causing condensation to freeze on the coil. To avoid this, make sure to clean or replace your air filter regularly. The frequency of replacement or cleaning will depend on several factors, such as the type of filter, the number of pets in the house, and the presence of allergies or respiratory conditions.

Avoid Blocking Air Vents

Another way to keep your evaporator coil from freezing is to avoid blocking air vents. Make sure that all vents in the house are open and that nothing is obstructing them, such as furniture or curtains. Blocked vents restrict airflow, causing the air conditioning unit to work harder than necessary, which can lead to a frozen coil. Make sure that all vents are free of obstructions to ensure proper airflow.

Maintain Your Outdoor Condenser Unit

The outdoor condenser unit plays a critical role in the proper functioning of your air conditioning system. To ensure that it operates at peak efficiency, make sure to maintain it regularly. Check it periodically to ensure that the coils are clean and free of debris, and that the fan is working correctly. You can also consider installing a shading device or awning over the unit to protect it from the sun’s heat and direct sunlight.

Hire a Professional for Regular Maintenance

Perhaps the best way to avoid a frozen evaporator coil is to hire a professional HVAC technician for regular maintenance. With regular maintenance, a technician can identify and address any potential issues before they become major problems. They can also perform preventive measures like cleaning the evaporator coil, checking refrigerant levels, and ensuring proper airflow. Regular maintenance can also help prolong the lifespan of your air conditioning system, potentially saving you money on repairs and replacements down the road.


In conclusion, to avoid frozen evaporator coil issues, make sure to keep your air filters clean, avoid blocking air vents, maintain your outdoor condenser unit, and hire a professional for regular maintenance. These simple actions can help ensure proper airflow, prevent temperature drops, and prolong the lifespan of your air conditioning system. Remember to keep the cool air flowing and stay comfortable during those hot summer months! If you need any assistance with your air conditioning system or are experiencing any issues, call us at Reliable Appliance & HVAC at (866) 516-1222. Our expert technicians are always here to help!

How Much Does It Cost To Repair A Frozen Evaporator Coil?

Are you experiencing issues with your air conditioning system and suspect that your evaporator coil is frozen? You are not alone! Frozen evaporator coils are a common problem when it comes to air conditioning maintenance.

At Reliable Appliance & HVAC, we have seen firsthand how a frozen evaporator coil can cause problems for homeowners. In this article, we will explain in-depth the average repair cost for a frozen evaporator coil issue.

The Average Repair Cost

The cost of repairing or installing a frozen evaporator coil can vary depending on the severity of the issue and the location. On average, the minimum repair or installation cost in a city like San Diego could be around $500, assuming prices are up by 20%. However, if the issue is complicated, you could be looking at $1500 or more, depending on the AC brand, single-family home, apartment, condo, mobile home, backyard, attic, rooftop, or inside the home.

The complexity of repairing a frozen evaporator coil often calls for multiple parts, such as thermostats, AC Condensers, Central AC units, Air handlers, Mini-split AC units, or heat pumps, which can add to the cost of the repair.

Itemized List of Repair Parts & Costs

To give you an idea of the cost of the parts, consider this table with the price of a top brand factory recommended part for an average frozen evaporator coil repair.

Part Name Price
Evaporator Coil $500
Compressor $800
Condenser Coil $700
Thermostat $50
Refrigerant Gas (Per Pound) $100

These parts come with their own unique costs, so it’s essential to understand which specific parts your AC system requires to calculate an accurate repair cost.

Cost Analysis

At Reliable Appliance & HVAC, our technicians conduct a thorough analysis of the issue once they arrive at your location. Our technicians will explain the issue and take the time to run diagnostics and offer a precise quote, detailing what needs to be repaired or replaced. The cost of materials will also be included in the quote.

While some homeowners may attempt to do the repairs themselves, it’s essential to understand that hiring a professional like Reliable Appliance & HVAC ensures that the repair work is done correctly the first time, which can save you more money and time, long-term.

Call Reliable Appliance & HVAC Today

If you are experiencing issues with your air conditioning system, it’s essential to call Reliable Appliance & HVAC before the issue gets worse. Our skilled and experienced technicians are available 24/7 to offer expert advice and service.

Call Local Reliable Appliance & HVAC at (866) 516-1222 or click the link to schedule a consultation today!

Frozen Evaporator Coil: Reliable Appliance & HVAC to the Rescue!

Are you experiencing warm air blowing through your vents? Is your AC not working as it should? Don’t worry; you’re not alone. A Frozen Evaporator Coil could be the culprit, and it’s a common issue that we at Reliable Appliance & HVAC see regularly.

As a family-owned company in San Diego, we know how important it is to keep your home cool during hot weather. That’s why Reliable Appliance & HVAC offers same-day services for appliance and HVAC repairs and installations. Our highly trained technicians with a minimum of five years of experience on the field deal with frozen evaporator coils constantly and provide fair and affordable pricing.

Symptoms of a Frozen Evaporator Coil

A frozen evaporator coil causes various issues that are easy to identify. These include:

  • Warm air blowing through your vents
  • Reduced airflow from your AC
  • Hissing or bubbling sounds coming from your AC
  • Increased humidity levels in your home
  • An increase in your energy bills

If you notice any of these symptoms, call Reliable Appliance & HVAC immediately. Our team will arrive promptly and get to work right away.

Our Diagnostic Process

Our technicians follow a thorough diagnostic process to identify the issue and provide the best solution. After inspecting your AC system, they will run tests to determine the cause of the frozen evaporator coil.

Once the issue is confirmed, they will offer a quote – no hidden fees or charges – with a detailed breakdown of the parts, material, and labor costs. At Reliable Appliance & HVAC, we use branded factory recommended parts and quote an affordable price for your budget.

Cost Analysis

Here is a table that shows the costs for a customer who experienced a frozen evaporator coil in their [AC brand] system located in their [residence type].

Part/Service Cost
Evaporator Coil Replacement $X
Refrigerant Recharge $X
Labor Costs $X

By choosing Reliable Appliance & HVAC, you save money and time since our technicians have the expertise to diagnose and repair your AC system promptly. We also offer a 90-day warranty on all repairs and a $25 discount for first-time customers.


If you’re dealing with a frozen evaporator coil, don’t wait any longer. Call Reliable Appliance & HVAC, and let us handle the issue. Trust us to get your home comfortable again, and save you time and money. Our customers in San Diego know they can count on us for reliable, affordable, and quality service. Call us at (866) 516-1222 today!

FAQ: What to Do When Your AC Evaporator Coil Freezes and Frozen Evaporator Coil

Q: What causes the AC Evaporator Coil to Freeze?

A: The main causes of a frozen evaporator coil include a dirty air filter, low refrigerant levels, and inadequate airflow, which can be caused by a faulty blower motor or a clogged air duct.

Q: How do I know if my AC Evaporator Coil is Frozen?

A: A frozen evaporator coil can cause warm air to blow from your AC system or no air at all. If your AC is making strange noises or you notice ice buildup on the evaporator coil, this could be a signal that it has frozen.

Q: What should I do if my AC Evaporator Coil is Frozen?

A: First, turn off your AC system and let the ice thaw on its own, which can take several hours. Once the ice has melted, replace the air filter and turn the system back on. If the system continues to freeze, it may require professional servicing.

Q: Can I Fix a Frozen Evaporator Coil Myself?

A: It is not recommended to attempt to fix a frozen evaporator coil on your own, as it can be intricate work that requires the knowledge and experience of a professional. Attempting to repair it on your own can result in further damage to the system, costing you even more money in the long run.

Q: How Much Will It Cost to Fix a Frozen Evaporator Coil?

A: The cost of repairing a frozen evaporator coil can vary depending on the make and model of your AC system, as well as the type of repair needed. At Reliable Appliance & HVAC, we offer competitive pricing and use brand-specific parts recommended by the manufacturer. Here is a table that summarizes the estimated costs:

Part Material Cost Labor Cost
Thermostat Sensor $50 $100
Expansion Valve $100 $200
Refrigerant $5 per oz. $150 per hour

Note: The above costs are estimates and do not include any additional repairs that may be needed.

Q: How Fast Can Reliable Appliance & HVAC Technicians Fix My Frozen Evaporator Coil?

A: At Reliable Appliance & HVAC, we pride ourselves on providing same-day service for all of our customers, ensuring that you don’t have to suffer in discomfort for long. Our technicians are highly skilled and experienced, and will arrive at your location in a timely manner to diagnose and repair your AC system.

If you’re experiencing issues with your AC system, don’t hesitate to call Local Reliable Appliance Repair at (866) 516-1222, and let our team of experts get your system up and running again.