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Kelvinator Air conditioner coils freezing

If your Kelvinator air conditioner coils are freezing, start with airflow. A dirty or damaged air filter is the most common cause because it restricts air moving across the evaporator coil, letting moisture freeze into frost and eventually block airflow completely. If the ice is only forming in one area, the problem may be a sealed system refrigerant leak, which requires a licensed technician and is often costly. A dirty evaporator coil can cause the same window air conditioner freezing up problem by reducing heat transfer and airflow. If the filter and coil are clean, check whether the dual shaft fan motor or fan motor is running, since a failed motor will stop the fan blade or blower wheel from circulating air and can leave the AC coils frozen. Some filters can be washed with soap and water, but damaged or heavily clogged filters should be replaced. Enter your Kelvinator model number on RepairClinic.com to find the exact air filter, fan motor, blower wheel, or other replacement part for your specific air conditioner.

01 - Dirty or Damaged Air Filter

If the air filter becomes clogged with dirt, it restricts airflow over the evaporator coils. If the airflow is reduced, the evaporator coils get too cold, which then causes the humidity in the room to condense on the coils and freeze. As frost accumulates on the coils, the frost restricts the airflow even more. Eventually, the entire evaporator coil assembly will frost over, causing the airflow to be completely restricted. Most air filters used in stand-alone air conditioners can be cleaned with soap and water. Only filters that are extremely clogged with debris or damaged will need to be replaced.
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02 - Sealed System Leak

If the air conditioner coils are freezing in only one area, there may be a sealed system (or refrigerant) leak. This is normally a very expensive repair. Repairs to the sealed system must only be performed by a licensed technician.
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03 - Dirty Evaporator Coil

Proper air flow is critical for the air conditioner to work properly. The evaporator needs sufficient air flow to keep the condensing water from freezing. If the evaporator coil, air filter or blower wheel gets clogged, air flow will be reduced and ice can start forming on the evaporator coils, eventually freezing them up. It is recommended to replace the air filter routinely. Refer to owner's manual for air filter replacement frequency recommendations and for evaporator coil cleaning instructions.
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04 - Kelvinator Air Conditioner Dual Shaft Fan Motor

An air conditioner dual shaft fan motor is the component that spins the fan blade and blower wheel to both draw air into the unit and force it through the front vent and out the rear condenser coil. If the fan motor is burned out, the air won't be circulated which can cause the coils to freeze and the condenser and compressor to overheat. You can use a multimeter to determine if power is reaching the fan motor. If power is reaching the motor, but it doesn't run, the component will need to be replaced.
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05 - Kelvinator Air Conditioner Air Filter

If the air filter is clogged, air cannot flow properly through the air conditioner. This greatly reduces the cooling capacity of the air conditioner. In addition, if the air filter is clogged, the evaporator coils will frost over. Most air filters used in stand-alone air conditioners can be cleaned with soap and water. Only filters that are extremely clogged with debris or damaged will need to be replaced.
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06 - Kelvinator Air Conditioner Fan Motor

An air conditioner fan motor is the component that spins the fan blade or blower wheel to circulate the air. If one of the fan motors is burned out, the air won't be circulated properly which can cause the coils to freeze. You can use a multimeter to determine if power is reaching the fan motor. If power is reaching the motor, but it doesn't run, the component will need to be replaced.
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Frequently Asked Questions

Why are my Kelvinator air conditioner coils freezing?
Can a dirty air filter make my window air conditioner freeze up?
Why is my Kelvinator AC not cooling after the evaporator coil freezes?
Can a bad Kelvinator air conditioner fan motor cause the AC coils to freeze?
What does it mean if my air conditioner coils are frozen in only one area?
How do I find the right Kelvinator air conditioner air filter or fan motor?