How To Stop Room Air Conditioner From Freezing Up
Room air conditioners require a constant airflow across the evaporative coils.
The evaporative coils are the ones that face the interior of the room and get cold.
It is these coils that remove heat and moisture from the enclosed room.
Maintenance is required to keep the room air conditioner in good working order.
Failure to properly maintain the room air conditioner may result in having the evaporative coils freeze over from excessive moisture buildup.
How to Stop Room Air Conditioner From Freezing Up
Shut off air conditioner unit and allow ice to completely melt
Shut off the air conditioner unit and allow the ice to completely melt. You may run just the fan to blow air over the coils to accelerate the melting of the accumulated ice. This may cause excessive moisture to be blown into the enclosed room.
Remove interior filter from front of evaporative coil
Remove the interior filter from the front of the evaporative coil. Wash the filter under a stream of hot water in the sink. Clean all built-up debris from the thin filter material. Allow the filter to thoroughly dry.
Vacuum evaporative coils after thawing and when re is no moisture present
Vacuum the evaporative coils after thawing and when there is no moisture present.
Use the brush attachment on the vacuum cleaner.
Run the brush in vertical movements across the evaporative coil face.
This will remove accumulated debris from between the fins.
Debris will interrupt airflow, which can cause freezing of the coils.
Operate the room air conditioner unit when indoor or outdoor air temperatures are above 65 degrees F.
Lower ambient temperatures will cause the unit to freeze up.
Remove the air conditioner unit from the window, if after performing all of the above, the evaporative coil is still freezing up.
The compressor unit is low on Freon and must have more Freon added to the refrigeration system.
Only certified technicians are allowed to add refrigerant to all cooling systems.
Operate the room air conditioner unit when indoor or outdoor air temperatures are above 65 degrees F.
Lower ambient temperatures will cause the unit to freeze up.
Remove the air conditioner unit from the window, if after performing all of the above, the evaporative coil is still freezing up.
The compressor unit is low on Freon and must have more Freon added to the refrigeration system.
Only certified technicians are allowed to add refrigerant to all cooling systems.