The reason why the Pentium electric pressure cooker doesn't work when the cooking button is pressed is: 1. It is possible that the sensor is broken, including leads, plugs and sockets. The treatment method can connect a 100K resistor in parallel at both ends of the sensor, including the lead. 2. The weather is too cold and the sensor resistance is too high. The processing method can connect a 100K resistor in parallel at both ends of the sensor. 3. Sensor short circuit: Sensor short circuit fault is rare. Generally, it can only be replaced with a new one (the sensor is100k at room temperature of 25 degrees). 4. Overtemperature: It is common that the bottom of the pot is too dirty and the temperature is too high. 5, pressure switch failure.