1, the fault is often caused by the power supply not joining the electric heating tube circuit. When overhauling, you can first measure the resistance of L and N ends of the 3-core plug on the base power cord with a multimeter R× 10.
2. When the reset switch is not pressed, the resistance is ∞, and when the button is pressed, the corresponding resistance of 1500W electric kettle is about 32 Ω. If the resistance is still ∞ after pressing the button, it means that the heating pipe circuit is not working.