Step 1. Check the control panel
The control panel shows that there is no water in the solar water heater, so the reason may be that the hot water may be empty. Of course, this information is not absolutely credible, and the sensor failure will also cause the control panel to send the wrong signal. It looks like there's no water. There's water.
Step 2: check the solenoid valve
Solar water heater can not discharge water may be the solenoid valve failure, you can check the solenoid valve, get an exact answer. That is, press the water, open the shower, adjust to the direction of hot water, and see if there will be water. If it doesn't work, you can buy two 12 volt DC wires for 20 or 30 yuan.
Step 3: check the environment outside the window
After the water supply, the solar water heater still can't be waterproof, so it's likely that the water is leaking, so it's required to look out of the window to judge, if not, then it's the reason for the solenoid valve.
Step 4, solar water heater design
If the solar water heater is old-fashioned, there will be no controller in the process of use, so the float is broken, resulting in no water supply.