you could try here air filter, clogged ducts, or filthy evaporator or condenser coils.In case you have a ductless or window unit, the return vent and air filter will be identified instantly within the air conditioner, however , you can stick to these same methods at the time you find the filter.Clear away and Clean the Filter Discover the filter, which is typically situated in the entrance in the unit. Examine your guide if you're battling to discover it.This permits people to maneuver them from area to room Every time desired. To keep your portable air conditioner managing efficiently through the summertime, You'll have to frequently clean and maintain advice different elements.