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Avoid a Frozen A/C This Summer

Avoid a Frozen A/C This Summer

A number of factors can lead to a frozen A/C. One of the most common causes is a malfunctioning air-conditioning coil, but many factors can cause the coil to freeze. Under normal operating conditions, the coil and the A/C itself move moisture and air through the system to generate cooled air. The system then pushes that air through the ducts and into the home. The coil plays a critical role in this process; if it doesn’t operate under ideal conditions - for instance, if airflow slows down - the coil will freeze, and the air conditioner will stop working.

Homeowners in Marietta can reduce the chances of a frozen A/C by understanding both how the components of the A/C work together to operate consistently and the factors that contribute to the problem.

Getting to the Root of the Problem

When your A/C stops working, multiple factors could be causing a frozen coil and a frozen A/C.

  • Low refrigerant: When the A/C operates normally, the refrigerant moves through sealed lines. If the lines leak, refrigerant levels dip and create problems such as ice forming on the coils.
  • Low airflow: A reduction in airflow can be caused by several factors, including dust buildup on fan blades. If the ducts aren’t big enough to cool the home, you may suffer repeatedly from a frozen A/C.
  • A dirty filter: A dirty filter slows airflow. As dust and debris fill the surface of a filter, resistance to the air moving through the filter increases. If too little warm air moves over the coil, moisture on it will freeze.

Preventing the Problem

The single best way to prevent a frozen A/C is through maintenance checks. You should schedule a tuneup every spring before you fire up your A/C. This service includes a thorough check of the system to make sure that it operates efficiently and that its components aren’t worn out. A tuneup also involves a comprehensive cleaning of the system’s components, including the coil and parts that affect it:

  • Air filter
  • Refrigerant levels
  • Refrigerant lines
  • Fan
  • Motor
  • Sensor that checks for ice buildup

It doesn’t pay to neglect A/C maintenance. Your comfort, finances, and system health are at stake. Make 2014 the year that you commit to giving your A/C the care it needs. Contact Casteel Heating, Cooling and Plumbing to schedule a tuneup or to ask questions about a frozen A/C.