Why isn't the air conditioner cold?

The reason may be that the mode is wrong, and the sleep or dehumidification mode may be selected; The reason may be related to the damage of internal components of the air conditioner, such as compressor failure and condenser pipe damage, which can be repaired or replaced by professional maintenance personnel; The reason may be that there is not enough freon, so we can add fluorine to the air conditioner. The following are some common reasons why air conditioners are not cold and their solutions. The hot and cold water pipes are installed backwards. After the air conditioner is turned on, look at the position of the hot and cold pipes. The colors of cold pipe and heat pipe are different, and the corresponding interface colors match. If it is reversed, you can change it yourself. If it can't be replaced, you need to call the manufacturer and send professional maintenance personnel to repair it. The air conditioner is not cold after being turned on, which may be related to the wrong mode selection. Turn on the remote control and see which icon the mode pointer corresponds to. If it is raindrop-shaped, it is dehumidification mode. Although there will be cold air coming out, the effect is definitely not as good as refrigeration. Solution: Just change back to the cooling mode. The method of judging whether the external machine is out of order is simple. Put your hand in front of the outdoor fan. If you can feel the hot air coming out, there will be no problem with the air conditioner. On the other hand, if the air-conditioning fan is not moving or blowing cold air, it is likely that the external machine is out of order. Solution: Contact the manufacturer for after-sales maintenance.