Yes. Use a multimeter to measure the voltage and current of the solar panel. There is actually neither voltage nor current. Observe whether the panel surface is intact and not broken. Open the junction box behind the panel and see if there is voltage and current. in the upper connection strip of the diode in the junction box. Simply replace the diode. A solar panel is a device that converts solar energy into electrical energy. It is also called a “solar panel” or “photovoltaic panel” and is made up of numerous solar cells.
Hello, there is no hot water in the solar panel. There is thermal oil in the panel. The inner barrel of the barrel heats the water through the circulation of thermal oil in the panel. If no hot water comes out, first check whether the water inlet valve is open and whether it is blocked. Additionally, if scale inside the water heater has blocked thewater inlet and outlet after prolonged use, finally check the water. device, faucet and is there a blockage in the pipe angle valve?