If the damage is not caused by man, but by man, even during the warranty period, there is no need to pay any fees. The working principle of electric kettle is that the steam generated when water boils causes the bimetal of steam temperature sensing element to deform. This deformation drives the power switch to cut off power through the lever principle, and it cannot reset itself when it is cut off, so the kettle will not heat automatically after the power is cut off.

Electric kettle principle

Most kettles with heat preservation function have two heating pipes, one of which is controlled by the heat preservation switch separately, and users can control whether to keep warm or not. The insulation power is generally below 50W, and the consumption of one hour is usually less than 0. 1 kWh. The key component of the electric kettle is the temperature controller, which determines the quality and service life of the kettle.

The temperature controller is divided into simple temperature controller, simple jumper temperature controller and waterproof and dry-burning prevention temperature controller. Consumers are advised to buy an electric kettle with a waterproof and anti-dry thermostat. In addition to the key temperature controller, the composition of electric kettle must also include these basic components: kettle button, kettle top cover, power switch, handle, power indicator light, heating part and so on.