An evaporator coil is a vital component of your HVAC system, and it plays a key role in keeping your home cool and comfortable. At Mechanical Air, we understand the importance of a well-functioning evap coil in your air conditioning or heat pump system. Located within the indoor unit, typically near the air handler or furnace, the evaporator coil is responsible for absorbing heat from the air that passes over it, using refrigerant to cool the air that is then circulated throughout your home.
1. Poor Airflow
First and foremost, poor airflow is a major cause of a frozen AC. A clogged air filter restricts airflow over the evaporator coil, leading to freezing. Therefore, change your air filter every one to three months to maintain proper airflow.
2. Refrigerant Leak
A refrigerant leak is another common reason for freezing. Since refrigerant absorbs heat from your home, a leak reduces refrigerant levels, making the evaporator coil too cold. Consequently, if you suspect a refrigerant leak, contact a professional technician immediately. Prompt action will help protect your system.
3. Malfunctioning Thermostat
In addition, a broken thermostat may cause the AC to run continuously, making the evaporator coil freeze. Check your thermostat to ensure it works properly and set it to an appropriate temperature to avoid such issues.
4. Dirty Evap Coil
Dirt and debris on the evaporator coil can also cause freezing. Cleaning the coil regularly ensures it remains effective. Regular maintenance helps prevent dust buildup and keeps your system running efficiently.
5. Blower Fan Problems
Lastly, a malfunctioning blower fan may trap cold air inside the unit, causing the evaporator coil to freeze. Often, the fan fails due to insufficient lubrication or a damaged belt. Therefore, have a professional inspect the blower fan to confirm it operates correctly.
A frozen air conditioning unit can lead to costly damage and disrupt your comfort. To prevent freezing, change air filters regularly, clean the evaporator coil, and address issues like refrigerant leaks, thermostat malfunctions, or blower fan problems immediately. Don’t let these issues compromise your comfort—call Mechanical Air today if you need help or have any questions. Let us keep your AC in top condition! 559-288-6157
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