Your question is too general. Xizi Supreme is the model name of a solar meter. There are many reasons why solar energy does not produce water: there is no water in the water tank, the vacuum tube burst, the pipe joint falls off, the solenoid valve dies. The automatic water supply is damaged, there is a problem with the instrument. probe, which prevents the instrument from automatically supplying water, etc. You should call a plumber to take a look.
Cannot be replaced. Since this type of internal replacement battery cannot be replaced by yourself without professional tools, replacing easily damaged parts by yourself will cause losses and may also cause danger. Finding someone to repair it can minimize the loss. It is best to call your local service center to find someone to replace it.
1. Turn off the power supply.
2. Open the solar panel.
3. Remove the battery and replace it with a new one.
4. Install the motherboard.
5. Check if it can be used normally.