What To Do If Your AC Is Frozen?
South Carolina’s summer heat can be unbearable, and your air conditioner is a savior during these scorching days. But what do you do when you find that your AC is not cooling your home properly, and to make matters worse, it's covered in ice?
Don't worry– it's a common problem that can be resolved with a few simple steps. In this blog, we'll explore why air conditioners freeze up, the potential damage it can cause, and most importantly, what to do if your AC is frozen.
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With over 55 years of experience in AC repairs and maintenance, we've got the know-how to thaw out your system and keep you cool all summer long. Call Comfort Systems of York County today at (803) 324-7572 or schedule service online today. Your satisfaction is our top priority, and we back it up with a 100% satisfaction guarantee for every project.
Why Do Air Conditioners Freeze Up?
Before diving into the solutions, it's important to understand why air conditioners freeze in the first place. Your air conditioner is designed to cool your home by removing heat from indoor air and releasing it outside. When everything is working properly, a refrigerant circulates through a closed loop, absorbing heat from the indoor air and releasing it outside. However, several factors can disrupt this process and cause the system to freeze up. Here are some common reasons for a frozen AC unit:
Poor Airflow
Insufficient airflow over the evaporator coils is a leading cause of freezing. When the air conditioner's air filter is clogged, or if there are obstructions in the ductwork, the airflow diminishes. This reduction in airflow can cause the temperature around the evaporator coils to drop significantly, leading to ice formation.
Low Refrigerant Levels
Refrigerant is the substance that absorbs heat from indoor air. If your AC system has a refrigerant leak, the level of refrigerant in the system can decrease. When there's not enough refrigerant, the evaporator coils can become too cold and start freezing.
Thermostat Issues
A thermostat that is set too low can make the AC run continuously, causing the evaporator coils to get too cold. This can lead to icing. On the other hand, a malfunctioning thermostat may not turn off the AC even when the desired temperature is reached, again leading to freezing.
Dirty Coils
Dust, dirt, and debris can accumulate on the evaporator and condenser coils over time. When these coils are dirty, they are less efficient at heat transfer. This inefficiency can cause the evaporator coils to get too cold and freeze.
Mechanical Issues
Problems with the AC system's components, such as a malfunctioning blower motor or a faulty expansion valve, can lead to temperature imbalances within the system, causing freezing.
The Potential Damage from a Frozen AC
Ignoring a frozen air conditioner can lead to a variety of problems and potentially costly repairs. Here are some of the potential issues that can arise:
- Reduced cooling efficiency: When your AC is frozen, it's not doing its job of cooling your home effectively. You'll feel the heat indoors, and your energy bills may skyrocket as the system struggles to maintain the desired temperature.
- Compressor damage: A frozen evaporator coil can cause liquid refrigerant to flow back into the compressor. This can damage the compressor, one of the costliest components of your AC system.
- Water damage: As the ice on the coils melts, it can cause water leakage and damage to your home's interior, such as ceilings and walls. This can also lead to mold and mildew problems.
- Shortened lifespan: Operating an AC system that frequently freezes can significantly reduce its lifespan. The strain on the system can lead to more frequent breakdowns and a shorter overall life expectancy.
What To Do If Your AC Is Frozen
Now that you understand the reasons for a frozen AC and the potential damage it can cause, let's explore the steps to take when you encounter a frozen air conditioner.
- Turn off the AC: The first and most crucial step is to turn off your air conditioner immediately. Continuing to run a frozen AC can exacerbate the problem and lead to more severe damage.
- Let it thaw: Allow the ice on the evaporator coils to melt. This can take several hours, so be patient. To expedite the process, you can turn on the fan mode on your thermostat to circulate warm air from your home over the coils.
- Check the thermostat: Verify that your thermostat is working correctly. Ensure it's set to an appropriate temperature, and that it's turning the AC on and off as needed. If you suspect thermostat problems, consider getting it inspected by a professional.
- Check for airflow restrictions: While waiting for the ice to melt, inspect the air filter, ducts, and vents. Replace a clogged filter, clear obstructions from the ductwork, and ensure that vents are open and unobstructed.
- Clean the coils: After the ice has melted and the system is turned off, you can clean the evaporator and condenser coils. Gently remove any dirt, dust, or debris that may have accumulated on the coils. Ensure that the area around the outdoor unit is free from obstructions.
- Schedule professional service: Even if your AC seems to be working fine after the thaw, it's essential to have a qualified HVAC technician inspect the system. They can identify any underlying issues that may have contributed to the freezing and make necessary repairs or adjustments to prevent it from happening again.
Preventing Future Freezing
Taking preventive measures to avoid a frozen AC is not only cost-effective but also far more convenient than dealing with the consequences. To reduce the risk of your air conditioner freezing up, prioritize regular maintenance by scheduling annual servicing with an experienced HVAC technician who can conduct comprehensive cleaning and inspections to ensure all system components are functioning optimally. Additionally, stay on top of air filter maintenance, adhering to the manufacturer's recommendations for regular replacement or cleaning, as this helps maintain proper airflow and prevents the accumulation of dust and debris on the coils.
Call Comfort Systems and get your frozen AC fixed ASAP.
When it comes to your home's comfort, trust the experts who prioritize honest pricing and deliver the highest quality workmanship. Call Comfort Systems of York County at (803) 324-7572 or schedule an AC repair online today. Your 100% satisfaction is our mission, and our commitment to excellence ensures your peace of mind, no matter what!