Keeping your air conditioner in Martin County, FL, running efficiently is essential for your home’s comfort. If it’s freezing up, this can reduce its operational efficiency and increase the risk of additional damage. Read on to learn about some of the most common reasons for an AC system freezing up.

Restricted Airflow

An airflow restriction over the evaporator coil can cause condensation to freeze on the coil. Restricted airflow can occur due to blocked or closed vents, a clogged or dirty filter or obstructed ductwork.

Dirty Evaporator Coil

Dust, debris and dirt can build up on the evaporator coil, preventing heat from transferring. When this happens, the coil gets too cold. Lack of regular professional AC maintenance can cause this problem.

Low Refrigerant Levels

When the refrigerant level dips too low, refrigerant evaporation can occur at a lower temperature than usual due to insufficient system pressure. Ice can form since this causes the evaporator coil to get too cold. Leaking is the most common reason for an inadequate refrigerant level.

Faulty Blower Motor

Airflow may not be sufficient if the blower motor isn’t working properly. This issue could cause the evaporator coil to freeze. Damaged fan blades, a worn-out motor or a faulty capacitor can negatively impact the operation of your blower motor.

Blocked Drain Line

If the condensate drain line has a blockage, moisture coming from the evaporator coil cannot drain properly, causing ice to accumulate. Common causes of a blockage include debris buildup, biological growth or a drain line kink.

As soon as you notice your AC system freezing, turn it off to prevent further damage. Call us at Krauss & Crane Air Conditioning so that we can determine why your air conditioner is freezing up and perform the proper AC repairs or maintenance on the system.

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