1. Clean the air cooler sink. Open the drainage valve and wash it with tap water. If dust or debris precipitation is more, it can be taken out first, and then washed with tap water.

2. Clean evaporation filter, namely wet curtain. Remove the wet curtain and wash it with tap water. If there are substances that are difficult to wash on the wet curtain, it can be permeated with tap water first, and then spray the air conditioning cleaning liquid on the wet curtain. After the cleaning liquid penetrates the wet curtain completely for 5 minutes, then wash it with tap water until the impurities on the wet curtain are removed.

3. Maintenance of wet curtain cooling fan when it is not used for a long time. First close the air cooler water valve, remove the wet curtain, drain the water in the water tank together, and thoroughly clean the air cooler water tank. After cleaning, install the wet curtain, open the air cooler and supply air for 5 to 8 minutes. After the wet curtain is blown dry, close the main power supply of the air cooler.

4. Odor removal. After the wet curtain cold fan is used for a period of time, if the cold fan is not cleaned and maintained, the cold air sent by the cold fan may have peculiar smell. At this moment, just clean the cold curtain and the sink of the cold fan according to the process of the second point above. If there is still a peculiar smell, you can add some chlorine-containing disinfectant to the air cooler sink when the machine is turned on, so that the disinfectant can fully penetrate the wet curtain and all corners of the air cooler, so that the air cooler can be disinfected several times.