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Need Affordable AC maintenance? Call AC Technical Services, LLC today. (210) 677-0001

Need Affordable AC Maintenance?
Call AC Technical Services, LLC today.
(210) 677-0001

4 Ways to Prevent Your AC From Freezing

An Aircon
If your AC unit blows hot air, your evaporator coil may be frozen. A frozen evaporator coil is a common air conditioning malfunction. Thankfully, this problem is often easy to avoid. Discover how you can beat the heat. Learn how to protect your AC from freezing.

1. Clean the Coils

Cooling your home starts with the heat transfer process. As the outside air enters the system, the coils extract the heat and moisture from the air. The warm and moist air is then transferred back outside and the cooled air flows through your home.

Evaporator coils clogged with dirt and other debris don't absorb the heat in the air adequately. Poor heat absorption puts the coils at an increased risk for freezing. Schedule an appointment to have your coils cleaned at least once per year. Perform this service as part of your annual preventive maintenance plan.

Consider more frequent cleanings during the hotter months if your coils get dirty quickly. Keep in mind, dirty coils can also put extra pressure on the system. As a result, the AC works harder and has a reduced lifespan.

2. Replace the Filter

A filter keeps allergens and other particles in the air out of your home. The air filter also affects the unit's airflow. A steady flow of return air must pass over the evaporator coils. A lack of airflow prevents the coils from absorbing enough heat. As a result, the coils freeze. The more dirt and debris on an air filter, the less air that passes over the coil.

Change your filter at least every 90 days. Change the filter every 60 days if you have a pet in your home. Pet dander and hair can cause the screen to fill up faster. Changing your filters as necessary will also lower your home cooling costs. Replacing a clogged filter with a new one can reduce your AC energy consumption by as much as 15%.

3. Handle Drainage Issues

Humidity levels in the area reach their highest levels from April to October. During this period, the AC coils must work overtime to remove the moisture from the air. All extracted moisture converts into condensation. Eventually, the collected condensation flows out of the system through a drainpipe.

However, a clog in the drainpipe will cause the condensation to back up onto the coils. Any level of moisture that rests on the coils put them at risk for freezing.

A drainpipe can clog for various reasons, including dirt buildup and algae growth. Have a technician come out to your home to look at the drainpipe. Until you resolve the issue with the clog, you will continue to experience the same problem.

4. Repair Leaks

Refrigerant helps maintain a steady level of pressure within the evaporator coils. When the pressure level is too low, the coils cannot absorb heat efficiently and freeze. A refrigerant leak can occur from normal wear and tear. However, the problem is also sometimes the result of an underlying issue, such as a buildup of acid.
A refrigerant leak always spells trouble no matter the cause. All leak concerns require the skill of a professional. Only someone with the right knowledge can accurately diagnose and repair the leak.

Also, make sure you don't ignore the issue. Operating the AC with low refrigerant levels means higher energy costs. Too little refrigerant may also cause costly damage to the compressor motor.

Are you dealing with a frozen air conditioning unit? AC Technical Services is here to help. No matter your HVAC concern, our team of technicians is standing by to assist you. Call us for more information on our services.