The reason why 5000 degrees Celsius appears every time the pot is heated is that the temperature sensor is faulty or the program setting is incorrect.

1. Temperature sensor failure: The temperature sensor is a key component for measuring the temperature in the kettle. If the sensor fails, it will cause the temperature display to be wrong.

2. Program setting error: The temperature control program in the kettle is set incorrectly, which will also lead to the temperature display error.