AC is on, but no cold air is coming?

Very often customers call us and ask the same question 'AC is on, but no cold air is coming? So, first, let's figure out how to determine that the air conditioner does not cool well. The main criterion is the temperature at the outlet of the indoor unit of the air conditioner, it should be between 6 and 14 0C for non-inverter models. The exact temperature value depends on the degree of contamination of the indoor and outdoor units of the split system (more precisely, its heat exchangers). And also on the temperature inside the room and outside, that is, the greater the heat load, the higher the temperature of the cooled air. The filters of the indoor unit of the air conditioner are dirty. This problem can be easily dealt with on your own. You need to open the cover of the indoor unit of the air conditioner and rinse the filters with running cold water (hot water can deform them) and then install them in place. The heat exchanger of the indoor and/or outdoor units are dirty. Especially strongly clogs made by poplar fluff and exhaust gases that form a film on the surface of the heat exchanger. They can be cleaned with a high-pressure washer, a steam cleaner, mechanical means, special chemicals, or order service. The indoor fan is dirty. The AC must be disassembled and the indoor fan must be cleaned, for example, with a brush or high-pressure washer. If your AC is on, but still no cold air is coming, it`s better to call a specialist.