What does Haier water heater cleancare mean?

The water quality of tap water entering the water heater tank is not very good, so press the "cleancare" button for sterilization. This is a sterilization safety early warning system specially developed by Haier Group, which is a patent of Haier. The self-cleaning function of Haier water heater is that the liner of Haier water heater will have dirt precipitation after long-term use, and the self-cleaning function is to add dirt to the liner and clean it automatically.