It means that the air conditioner has turned on the sleep mode. Air conditioning sleep mode refers to an operation mode that starts when sleeping at night and automatically rises by one degree Celsius every hour at night. It can save electricity and be more comfortable, because the temperature is decreasing at night.

When the air conditioner is in normal use, you may see the moon sign, and then the air conditioner will stop running. This is that the air conditioner automatically enters the sleep mode, in order to avoid the excessive frost generated by the external machine from affecting the heating effect of the air conditioner. But users don't have to worry about this situation, because it will return to normal use in a few minutes, so the appearance of the moon will not affect the normal use of air conditioners.

Extended data:

How sleep mode works.

When the air conditioner is in cooling operation mode, after selecting the "Sleep" function, when the indoor temperature reaches the set temperature or has been running 1 hour, the set temperature will automatically increase by 1℃, and then increase by 1℃ after running1hour. When the total running time reaches 8 hours, stop running, and * * * will increase by 2℃ within 8 hours.

If the air conditioner is in heating operation mode, after 1 hour in sleep mode, the set temperature will decrease by 2℃, and after 1 hour, the set temperature will decrease by 3℃. When the total running time reaches 8 hours, the air conditioner will stop running. * * * 5℃ drop within 8 hours.