1, the electric pressure cooker will be placed firmly on the desktop, one hand to grasp the top open knob, the other hand to grasp the location of the buckle (note: at this time to ensure that the pot has been pressure relief completed, and has been cooled down, because it is an electronic product also dare not use the water to cool down, it can only wait for it to cool down naturally), hard counterclockwise rotation will be open the lid. This is only a momentary solution.
2, you can see in the picture there is a white plastic buckle (automatic lid in place detector), it is my home electric pressure cooker problem. Pressing it gently with your hand, if it doesn't spring back fully, indicates that its spring is no longer working properly, so when you switch it on and off, you are violently opening and closing the lid to the pot because that detector is not fully retracted.
The possible reasons are:
One, it is not fully relieved, just be patient and wait for a complete pressure relief.
Two, it has been a long time. Although the pressure has been reduced to normal atmospheric pressure, but the safety valve due to increased resistance between the lid and the pot (oil, food residues and oxides), can not naturally fall to a position that allows the lid to open normally, if this is the reason, you can use the tip of the chopstick to poke the safety valve can be.