1, poor power contact, check whether the power cord is normal, and then measure the resistance of the electric heating connector with a professional tool multimeter to check whether the electric heating wire is burnt out. If it burns out, try to find maintenance personnel to repair it alone to avoid electric shock. The thermostat is broken. Ouzhibao rice cooker will have a thermostat inside to control the heating temperature and insulation temperature. If the thermostat fails, the Ouzhibao rice cooker will not be powered on. If it is overheated, the rice cooker will be burnt. So if the thermostat fails, replace it directly. 3, voltage instability, voltage instability will also make the rice cooker suddenly shut down, if the voltage instability, you can install a voltage regulator.