The pressure valve or float valve is faulty
It is recommended to clean up by yourself first, if it can not be solved, please ask professional maintenance personnel
The pressure valve of the pressure cooker did not fall down, indicating that the pressure inside is still high, at this time it is best not to forcibly exhaust, especially the pressure cooker is cooked in soup or porridge, forced exhaust may cause the soup in the pot to rush out, one is easy to burn, and the other is to cause waste. If you are in a hurry to open the lid, the best way to speed up is to cover the high-pressure pot with a towel soaked in water, or sprinkle water on the pot to speed up the cooling, which can reduce the waiting time.