1. Ensure that the indoor wiring in the home is reliably grounded and that the grounding resistance value is less than 4 ohms;
2. The electric water heater should use a fixed dedicated socket with a ground wire, and the performance of the socket model should be checked to ensure it matches and is waterproof;
3. When using an electric water heater, do not turn off the power through the switch on the socket;
4.When cleaning the exterior of the electric water heater, the power should be cut off first and then wiped with a soft cloth;
5.If the power cord is damaged, it should be replaced by professional personnel.