July 12, 2020

When you use your air conditioner, you want the interior to stay nice and cool. However, your air conditioner needs the right balance of pressure, airflow, and temperature to cool down those interior areas. If your system is out of balance, then you can be left with damage to your system. A frozen air conditioner is often the result of an unbalanced system. Here are some of the top reasons that your air conditioner might freeze up and what you can do to prevent the issue.

Low Refrigerant

Low refrigerant is one of the most common reasons that an air conditioner will freeze up. You can have issues if there is a leak in the unit. If the coolant was not charged during the installation, it could lead to more problems. When the refrigerant levels are low, then the evaporator can cause the coils to become too cold. While you may want to handle this issue by yourself, you will want to call a professional to fix the problem for you.

Clogged Air Filters

Dirty and clogged air filters can cause plenty of problems for your cooling system. Many issues can be avoided with regular maintenance of your unit. When the filter is dirty, it can decrease the airflow to your system. In addition to that, dirty filters can put added stress on the compressor and other AC components. Low airflow will deliver less air to the evaporator coils, and that can lead to less air to cool down the components. You want a good flow of humid and hot air to prevent the coils from freezing. This problem is a simple fix. You can change the filter once a month to help keep your air conditioner from freezing up.

Closed Vents

You might think that closing your vents and registers can save some money on energy costs. However, those closed registers could have an adverse effect. If you close too many vents in your home, the air balance will be off as the air conditioner freezes. You want to make sure that no more than a quarter of your vents are closed at a time. When you do this little step, you can prevent a frozen air conditioner.

Malfunctioning Fan

The fan is one of the most critical components in the air conditioner. It needs to blow fast enough to keep up sufficient levels of airflow over the evaporator coils. Any problems with the blower will need to be adjusted by a trained technician. You can increase the fan speed in your unit, but you should see if there is an underlying issue that causes the fan to decrease in power.

Broken Thermostat

A faulty thermostat can also cause a frozen air conditioner. In some cases, an air conditioner will make your unit run even when it is cool enough in your home. Your indoor air temperature might be at the right level, but your thermostat might be reading it at another level. This problem can waste energy and money as it causes your air conditioner to freeze up. You will want to have the thermostat checked out by a professional to see if it will need to be replaced.

Drainage Problems

A frozen air conditioner is also the result of drainage issues. If you live in a hot and humid climate, your cooling system will have to work extra hard to remove heat and moisture from the air. In humid climates, that water vapor is turned into condensation in your unit. With normal operation, the water will drip out through the floor drain. When something blocks the drainage pipes, then the water can freeze in the evaporator coils. Ice can also block the drain and cause more problems for your unit. You will want to clear the drainage pipe during the hottest parts of the summer. If your system is working correctly, you should see water exiting through the floor drain.

Improper Placement

Finally, a frozen air conditioner can be caused by an improperly tilted window unit. You want the unit to be slightly tilted. The indoor portion must be higher than the outdoor half. With the wrong placement, the water cannot exit from the drainage hole. As a result of that, it will stay in the unit and freeze. If you adjust the unit, you should not have any other issues with freezing water.

What to Do for a Freezing Air Conditioner

If your air conditioner is frozen, there are a few things that you want to do to prevent any damage. First of all, you need to shut off the system to stop any damage to the compressor. You also want to find the drain to make sure there are no blockages. For those with a wet-dry shop vacuum, you can open up the ductwork to suction out the water.

For those who want to speed up the defrosting process, you could use a blow dryer on the evaporator coils to help melt the ice. By turning on the air conditioner fan, you can also help to dissolve the ice quickly. Once you have melted the ice and unblocked any drainage pans, you will be able to turn on the air conditioner. However, you should call a professional technician to check out the problem. If your air conditioner becomes frozen, there are chances that it will happen again. For those who want an inspection of their cooling systems in the Baltimore County area, make an appointment with Air, Plumbing & Heating Solutions.

Keep Your Air Conditioner in Top Shape

A frozen air conditioner is a serious issue. You want to resolve it as quickly as possible to avoid any severe damages. For those who want to prevent any problems with your air conditioner, you must check on those refrigerant levels and change the air filters. Your air vents should remain open with the appropriate fan speed in your unit. Those drainage pipes must be checked to avoid any issues with condensation. Finally, your thermostat is important, and it must be working correctly to prevent freezing up your air conditioner.

We Have Solutions to Your Cooling Issues

At Air, Plumbing & Heating Solutions, we have over 33 years of experience helping Baltimore County residents with cooling, heating, indoor air, and plumbing issues. We can even assist with duct cleaning and energy audits. When you need emergency service, we are there for you throughout the day and night. Our company is locally owned and operated. We will handle all your issues with the highest level of exceptional customer service.

Our company has won the prestigious Angie’s List Super Service Award for 12 years. This honor is only awarded to 3% of all HVAC companies in the United States. When you call us, you can count on our high-quality service and work. If you have any issues with your home comfort systems in Randallstown, MD, make sure to call Air, Plumbing & Heating Solutions today!

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