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HomeRepair HelpGoldstar A/C RepairGoldstar Air conditioner coils freezing Repair
Goldstar Air conditioner coils freezing
If your Goldstar air conditioner coils are freezing, the problem usually starts with restricted airflow. A dirty or damaged air filter is the most likely cause because it blocks air from moving across the evaporator coil, letting moisture freeze until airflow drops even more. If the AC coils are frozen in only 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 cause the same kind of window air conditioner freezing up problem, especially when dust buildup, a clogged air filter, or debris on the blower wheel keeps air from moving properly. If airflow looks weak and the filter and coil are clean, check the Goldstar dual shaft fan motor, fan motor, fan blade, and blower wheel. A motor that receives power but will not run can let the evaporator coil freeze and may need replacement. Enter your Goldstar model number on RepairClinic.com to find the exact air filter, fan motor, or other replacement part that fits your 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.
Top Solution
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 - Goldstar 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 - Goldstar 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 - Goldstar 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 Goldstar air conditioner coils freezing?
Can a dirty air filter cause a window air conditioner to freeze up?
What should I check if my Goldstar AC has weak airflow and the evaporator coil is freezing?
Can a bad fan motor make my Goldstar air conditioner coils freeze?
How do I find the right replacement part for a Goldstar air conditioner that is freezing up?
Does ice on only one part of the evaporator coil mean a refrigerant leak?
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