How Do You Fix A Frozen Evaporator Coil?
Air conditioning systems contain two separate coils, an evaporative coil and a condenser coil. The condenser coil sits outside the home, removes the heat gathered from indoors and releases the collected heat to the outdoors. The evaporative coil is placed inside the air conditioning ductwork of the home. It is this coil that gets cold and pulls unwanted heat from the enclosed area. One of the most common reasons for an evaporative coil to freeze over is a dirty air filter or debris on the coil itself. Shut off the air conditioning system. Remove all electrical power from the unit by turning off the circuit breakers or pulling the fuses that supply power to the air conditioning unit. Open the intake air grill and remove the old air filter. Use the vacuum cleaner and remove any accumulated debris found inside the ductwork. (This debris can collect on the evaporative coil and reduce the airflow through the coil’s fins, causing the coil to freeze over.) Gain access to the evaporative coil.
