Check whether the rated current of the switch matches the load, and require the rated current of the switch to be greater than the load current. Check whether the switch trip is caused by overload.

Check whether the insulation of the soup porridge stove and the line meets the requirements and whether it trips due to reduced insulation.

If you are not sure whether it is the fault of the line or the fault of the electrical appliance, it is suggested to try to plug the electrical appliance into other circuits.

Try several more circuits, and if possible, you'd better change the switch. To determine whether it is a wiring problem or an electrical problem.

I hope I can help you.