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Kilowatt Heating, Air Conditioning and Electrical Blog

Why Is My Coil Freezing Up? – Los Angeles

An HVAC (heating, ventilation, and air conditioning) coil can freeze due to a few reasons, including:

  1. Dirty coil: A dirty coil can restrict airflow, causing the temperature of the coil to drop and resulting in condensation that freezes on the coil. The entire coil can become a big block of ice!
  2. Low refrigerant level: If the refrigerant level is low, the pressure in the evaporator coil will drop, leading to lower temperatures and potentially freezing.
  3. Faulty fan or motor: If the fan or motor isn’t functioning correctly, the airflow across the coil will be restricted, causing the coil to freeze.

A coil cleaning will help prevent the coil from freezing by removing any dirt, dust, or debris obstructing airflow. When the coil is clean, air can flow freely through it, which will help prevent the temperature from dropping to the point where condensation freezes on the coil.

Additionally, regular coil cleaning will improve the overall efficiency of the HVAC system by ensuring that it can transfer heat effectively, which will reduce energy consumption and lower utility bills. It can also extend the lifespan of the HVAC system.

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