First, the lead wire of the temperature sensor of the heating circuit in the curing pot is broken or damaged. Treatment: detect the temperature sensor and its lead, and connect it if it is broken; Test the resistance at both ends of the sensor at room temperature of 25 degrees. If the forward resistance is 100k ohm and the reverse resistance is infinite, it can be used normally, otherwise it should be replaced.
Second, investigate and deal with the damage of the heating parts of the health pot. Test both ends of the heating parts in the pot. If the resistance value is infinite, you need to replace the original type of heating parts; Third, the abnormal maintenance of the power control circuit in the kettle is mainly to detect whether the micro switch of the function key can be turned on and replace it with a new micro switch to ensure the reliability of operation.