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Common Causes of Frozen AC Units

What Causes Frozen AC Units: A Customer’s Story

Hello there, kiddos! Have you ever had such a cold blast of air coming out of your home’s AC that it feels like you’re standing in the middle of Antarctica? You know, as if a penguin is chirping next to you? Well, that’s pretty cool if you’re on a hot summer day, but there’s a catch! Sometimes things can go wrong that require a little bit more than a snow jacket to fix. So today, our friends at Reliable Appliance & HVAC are going to tell you about one common AC problem that causes more headaches than a snowball fight gone wrong: frozen AC units!

Our job at Reliable Appliance & HVAC is to take care of all your heating and cooling needs. One day, we got a call from a customer who was struggling with their central AC system. Her name was Lisa, and she lived in downtown Los Angeles in a small apartment. Lisa was a friendly lady, always walking her two little dogs in the park, and enjoying ice cream in summers. She was feeling hot and tired and was eagerly waiting for the cool breeze coming from her central air conditioning.

But alas! Her AC was blowing hot air! In the middle of the summer! Can you imagine that? And not only that, there was ice or frost, or something like that, forming on the part of the AC located inside her apartment, near the furnace. Lisa told us that she had never seen anything like this and was feeling very frustrated.

As you might imagine, with ice forming on her AC unit, Lisa’s apartment wasn’t cooling off at all. That’s where our Reliable Appliance & HVAC technicians come in! After getting the address, we quickly dispatched technician Jake to Lisa’s apartment complex to investigate what was going on with her AC. When he arrived, Jake started to diagnose the problem.

After running his diagnostic tests, Jake discovered that the culprit behind Lisa’s AC problems was a frozen AC unit! Essentially, the AC unit had become so chilly that it had begun to freeze up, which is why ice was forming all over it, and it was blowing out hot air. Jake explained that a frozen AC unit was a common issue and could have several possible causes.

For example, it could be dirty filters or an obstruction in the ductwork or incorrect refrigerant level. It could also be a sign that something much more serious was going on with the AC, including trouble with the evaporator coil, or other internal components.

After diagnosing the issue, Jake explained the situation to Lisa, gave her a comprehensive quote, a detailed list of all the parts, materials, and labor costs, including brand names, and followed the factory recommendations. Lisa wasn’t very happy about it, but she knew it was necessary to get her AC up and running again!

Jake quickly got to work and resolved Lisa’s AC problem by clearing up the frozen unit, cleaning the evaporator coil, and adjusting the refrigerant levels until everything was running smoothly again. Lisa was overjoyed with the service she received from Reliable Appliance & HVAC and was thankful that she called us to help.

In conclusion, if you notice ice forming on your AC unit or the AC is not cooling your space as it should or is blowing hot air, it could be a sign of a frozen AC unit. Don’t panic! Call Reliable Appliance & HVAC experts.

We hope that the story of Lisa’s AC issues has been helpful for you to understand the possible causes of a frozen AC. Remember, it’s important to have a professional take a look to identify any potential issues and resolve the problem before the situation turns into a snowstorm!


Frozen AC units are a common issue that can occur due to several reasons, including dirty filters, obstructions in the ductwork, incorrect refrigerant levels, or internal component issues. If you notice ice forming on your AC unit, the AC not cooling down, or blowing hot air, it’s time to give our experts at Reliable Appliance & HVAC a call. Our technicians will diagnose the issue and offer a comprehensive quote, including a detailed cost analysis table. Don’t let a frosty AC freeze you out!

Common Causes of Frozen AC Units
Common Causes of Frozen AC Units
Common Causes of Frozen AC Units

Advice to Prevent Causes of Frozen AC Units Issues

Are you sick and tired of your AC unit suddenly going on the fritz when you need it the most? During hot summer months, AC failure is the last thing anyone wants to deal with, and a frozen AC unit is a common culprit of these problems.

To prevent these causes of frozen AC units, we recommend taking the following preventive measures in your home:

1. Inspect and Replace Air Filters Regularly

Replacing your air filters is the single most vital preventive measure for ensuring your AC unit runs smoothly. Dirty and clogged filters obstruct airflow, which can cause your AC unit to freeze up. To reduce the likelihood of these issues, schedule a routine check-up with Reliable Appliance & HVAC technicians to examine and replace air filters on time.

2. Clear Out Debris

AC units operate most efficiently when free from debris, and outdoor units are often subjected to bird droppings, bushes, and other debris. At least twice in a year, schedule Reliable Appliance & HVAC technicians who will inspect and clean the outside unit of your AC system so that there is no chance for blockages.

3. Keep a Check on Thermostat Settings

Thermostat settings control the temperature and airflow of your AC unit. If your AC unit is consistently blowing cold air, it can cause frosting problems in your AC unit’s heat exchanger, resulting in frozen AC units. We recommend setting your thermostat to the recommended temperature for your particular unit to minimize the chances of freezing.

4. Check and Sealing Air Ducts

Air ducts must be sealed and checked for air leaks to ensure effective AC unit operation. Air leaks can cause your AC unit to work harder than necessary, leading to freezing problems. Schedule an appointment with Reliable Appliance & HVAC to detect any air leaks and repair them promptly.

5. Routine Maintenance and Inspections

Routine maintenance is preventative care that problems never occur in the first place. By scheduling regular inspections with HVAC professionals from Reliable Appliance & HVAC, you can identify and resolve issues before they impact your air conditioner system’s performance. Want a more industry expert guide, explore our HVAC maintenance contract services for full-proof controlled temperature settings.

By taking these preventive measures, you can save money on energy bills, reduce the likelihood of inconvenience, and extend the lifespan of your AC unit while preventing frozen AC units.

At Reliable Appliance & HVAC, we provide AC installation, maintenance, and repair services to homeowners throughout San Diego. Give us a call at (866) 516-1222, and we’ll be happy to provide you with expert advice or schedule your AC maintenance appointment today!

Average Repair Cost for Causes of Frozen AC Units Issue

Are you tired of feeling the heat inside your residence and feeling helpless when your AC unit freezes over? Don’t worry; we at Reliable Appliance & HVAC have got you covered. Our experts are here to help you understand the causes of frozen AC units and the average repair costs.

Minimum Repair Cost

The minimum repair cost for a frozen AC unit issue is usually around $150, given that the prices are up 20% currently. This cost covers the essential repairs and services required to unfreeze your AC unit, such as refilling refrigerant or replacing filters.

Complex Repair Cost

The complex repair cost for a frozen AC unit issue can vary, depending on the severity of the problem. In the city of San Diego, a thorough diagnosis and repair job for a frozen AC unit issue can cost anywhere from $300 to $600.

Necessary Parts

Parts required for repairing frozen AC units vary from case to case. Ice buildup on the evaporator coil, clogged air filters, or damaged thermostats could be a cause, according to our technicians. Each of these issues requires different parts, such as evaporator coil cleaner, air filters, or thermostats, to repair the problem effectively.

Itemized List of Parts, Materials, and Labor Costs

We understand that you want to know precisely what comprises the repair costs, and that’s why we have provided an itemized list of parts, materials, and labor costs below table.

Part Material Cost Labor Cost
Evaporator Coil Cleaner $10 $50-$100
Air Filters $20 $50
Thermostats $50-$100 $100-$150

Importance of Professional Assistance

It’s crucial to seek professional assistance when dealing with frozen AC unit issues. Our Reliable Appliance & HVAC technicians are available 24/7 to respond to your emergencies and quickly resolve any problems. We have the required expertise, experience, and warranty to provide you with the best service possible.

Contact Us

If you’re experiencing a frozen AC unit issue, don’t hesitate to contact Reliable Appliance & HVAC at (866) 516-1222. Our experts will be there to help you resolve the issue quickly and efficiently. Keep cool with Reliable Appliance & HVAC!

Causes of Frozen AC Units: How Reliable Appliance & HVAC Can Help

Are you feeling the heat this summer? Nothing beats a cool, air-conditioned room during the blazing hot summer months. But what happens when your AC unit suddenly freezes up, leaving you feeling hot and bothered? Frozen AC units are a common problem that many homeowners face when temperatures rise. If you’re wondering what causes this issue and how to solve it, look no further than Reliable Appliance & HVAC, your local San Diego vendor company.

What Causes AC Units to Freeze Up?

Frozen AC units occur when warm air comes into contact with the cold evaporator coils in your air conditioner. When this happens, the moisture in the air condenses and freezes onto the coils, eventually causing a buildup of ice. Several factors can contribute to this problem, including:

  • Dirty air filters
  • Low refrigerant levels
  • Blocked ductwork
  • Faulty thermostats
  • Damaged blower motors
  • Clogged drains
  • Leaks or cracks in the air ducts

How Reliable Appliance & HVAC Can Help

At Reliable Appliance & HVAC, we know how frustrating it can be when your AC unit freezes up. That’s why we offer same-day service for appliance and HVAC repair and installations. We pride ourselves on our highly trained technicians with a minimum of 5 years of experience in the field, providing quick and reliable service to the San Diego community.

When you call us, we’ll send one of our reliable technicians to your residence, whether it’s a single-family home or a mobile home, and provide a full inspection of your system. Our technicians are knowledgeable and professional, ensuring that we diagnose the exact cause of your frozen AC unit.

With our upfront pricing, you can be confident that you’re getting fair and affordable pricing without any hidden costs. We provide a list of parts, materials, and labor costs, including the cost of the repair for your brand-specific AC unit. Our repair cost comparison table lists the cost of brand-name parts, price, and brand factory recommendations, so you can make an informed decision.

We only use high-quality parts to ensure that your AC unit is running smoothly for the long haul. Our job is not complete until you’re 100% satisfied with our work. That’s why we offer a 90-day warranty on all repairs. First-time customers can benefit from our getting $25 off repair costs.

Stay Cool with Reliable Appliance & HVAC

Don’t let a frozen AC unit ruin your summer. At Reliable Appliance & HVAC, we’re dedicated to providing top-notch service and repairs to keep your home cool and comfortable during the hottest months of the year. As a family-owned company, we understand the importance of excellent customer service and strive to treat all of our customers like family. Give us a call today at (866) 516-1222 to schedule your appointment and keep your cool this summer!

FAQ – Common Causes of Frozen AC Units

Q: What are the common causes of frozen AC units?

Frozen AC units can be caused by various factors, including:

  • Lack of airflow: When there is no proper airflow, the evaporator coil may freeze, blocking the coolant’s flow. This may be caused by dirty air filters or blocked ducts, leading to a frozen AC unit.

  • Refrigerant leaks: A refrigerant leak can cause the pressure to drop, leading to the creation of ice on the evaporator coil.

  • Thermostat issues: Thermostat issues can cause the AC unit to run continuously, causing stress on the system and subsequent freezing of the AC unit.

  • Blocked condenser unit: The condenser unit schedules heat exchange between indoor and outdoor units. If it is blocked, the AC unit may freeze.

Q: What are the symptoms of a frozen AC unit?

Some symptoms of a frozen AC unit include:

  • Reduced airflow
  • Blowing warm air
  • Wet spots around the indoor unit
  • Ice buildup on the evaporator coil

Q: How can I fix a frozen AC unit?

At Reliable Appliance & HVAC, we suggest turning off the unit and allowing it to defrost. Once the unit is defrosted, check for any airflow blockages, clean the air filters, and check for any refrigerant leaks. If the issues persist or you need a professional technician, call us at (866) 516-1222.

Q: Can a frozen AC unit cause any other issues?

Yes, a frozen AC unit can lead to other problems, such as compressor failure or electrical issues. Therefore, it’s important to address a frozen AC unit as soon as possible.

Q: How can I prevent my AC unit from freezing?

To prevent your AC unit from freezing, you should:

  • Clean or replace air filters regularly.
  • Schedule yearly maintenance to check for leaks, blockages, and other possible issues.
  • Keep the area around the unit clear of debris and vegetation.
  • Make sure the thermostat is functioning correctly.

Call Reliable Appliance Repair

If you’re experiencing a frozen AC unit or any other HVAC issue, don’t hesitate to call the experts at Reliable Appliance & HVAC at (866) 516-1222. Our technicians will arrive quickly, diagnose the issue and provide you with a transparent quote. We’ll help you restore the comfort of your home in no time.