Why Is My Portable Air Conditioner Not Cold. At least troubleshooting common portable air conditioner. There are some maintenance questions are you cleaning the filters is it installed correctly.
If the air filter is dirty or clogged there may not be enough air flowing over the evaporator coils and the coils can become too cold and frost over. The most common cause of a portable air conditioner not cooling a room is lack of airflow. Oversizing a unit will cause it to turn off too soon while undersizing a unit will prevent it from keeping the entire room cool enough.
In a properly working air conditioner the fan will draw air over the cold evaporator coils and then re-circulate the air back into the room.
This restricts airflow and a portable AC. Portable Air Conditioner Not Cooling Room. If your AC is blowing cold air out of the top vent but your room still isnt getting cold your room is probably too hot or too large for the heat capacity of your air conditioner. Ad Find Air Conditioner Not Blowing Cold Air.
