1. Disassemble the handle, there is a temperature control switch inside. The bimetal of steam temperature sensing element is deformed by steam when water boils, and the power switch is pushed by the principle of deformed lever, so that the electric kettle is automatically powered off after water boils.

2. If the contact between the temperature control switch and the boiler wall is loose or tripping, it may also lead to failure. First check whether it is loose, and then heat it on the contact surface of the temperature control switch with a heated soldering iron for about 30 seconds. There is no click, which proves that the switch has been damaged and must be replaced.