Enthusiastic netizens replied: First, there is no power supply. (refers to the light and heat failure after turning on the power supply) This failure mainly lies in the power supply line failure. You can measure whether the fuse is open or not. If yes, replace the corresponding fuse, and the fault can be eliminated. If the fuse is not blown, the thermostat at 145 degrees in the center of the pot bottom can be detected, and the thermostat will fail if it is not blown. Attention should be paid to the following parts in this fault: A: Is the power cord not working? (Open circuit) B: It means whether the interface (lecture) of the source line is melted or blocked. Second, the source indicator is on, but it is not hot. This kind of failure is mainly caused by the failure of the heating plate, which is generally caused by the burning (open circuit) of the heating plate. Third, turn it on and heat it for a while, and jump up to keep warm before the water boils. There are several reasons for this failure: A. The knob switch (that is, the timer) is not in good contact. Although it has been twisted to the cooking part, it has not been connected yet, so the circuit is only controlled at 60 degrees by the insulation switch. B. The pressure switch is out of order, so even if the timer contacts well, before the pressure reaches, the pressure switch has failed (tripped), so that the circuit is in a state of heat preservation and the water cannot be boiled. Four, a heating for a while, the whole machine will automatically disconnect the power supply, the light is not on. This failure is mainly due to the failure of the thermostat at the bottom of SKG mechanical electric pressure cooker at 145 degrees. Turn off the power supply when the temperature does not reach, turn on the power supply after the temperature drops, and switch to temperature control.