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HomeRepair HelpAmana A/C RepairAmana Air conditioner coils freezing Repair
Amana Air conditioner coils freezing
If your Amana air conditioner coils are freezing, the problem usually starts with restricted airflow. A dirty or damaged air filter is the most common cause because it limits air movement across the evaporator coil, letting the coil get too cold and ice over. If the AC coils are frozen in just one section, a sealed system or refrigerant leak may be the issue, and that repair should be handled by a licensed technician. A dirty evaporator coil can also block airflow and lead to evaporator coil freezing, especially if the blower wheel is clogged. On many Amana units, a failed dual shaft fan motor or fan motor can keep the fan blade or blower wheel from circulating air, causing a window air conditioner freezing up problem and possibly overheating the compressor. Start with the filter and coil condition, then check whether the fan motor is receiving power. When you know which part has failed, enter your model number on RepairClinic.com to find the exact replacement part for your specific Amana 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.
Highly Likely
04 - Amana 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 - Amana 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.
Common
06 - Amana 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.
Common
Frequently Asked Questions
Why are my Amana air conditioner coils freezing?
Can a dirty air filter cause my window air conditioner to freeze up?
Why is my Amana AC weak airflow and the evaporator coil freezing?
Can a bad fan motor make an Amana air conditioner freeze up?
How do I find the right Amana air conditioner air filter or fan motor replacement?
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