Plug the electric water heater into the red light.

The main reason is that the plug of 1 electric water heater with leakage protection will turn red when plugged in. If leakage protection is provided, the red light will go out. 2. Some water heaters will display a red light after being plugged in, indicating the normal power-on state. 3. Other water heaters are power-off indicators, mainly depending on the type of water heater you use. Different water heaters quietly plug in red lights for different reasons. 4. Moreover, the position of the zero line and the live line of some water heaters is changed in the wrong place, and this phenomenon will also occur. Suggested solution: 1. I suggest you check the manual of your electric water heater first, explaining that things will generally indicate whether it will show bright red when the plug is plugged in. If the flag is powered on, it means there is no problem. 2. If the manual of the water heater used shows the red light of power failure, it means that there is something wrong with the line and it needs to be tested. 3. It is normal that the electric hot water plug with leakage protection turns red after being plugged in. This situation does not need special treatment. 4. If the red light doesn't light up at ordinary times, it is a sudden phenomenon that the plug of the electric water heater is plugged into the red light, then it may be that the zero line and the live line of the socket are in the wrong position. At this time, it is necessary to ask professional maintenance personnel to change the position of the zero line and the fire line, and it can be solved.