What is the pressure switch of the electric pressure cooker?
Electric pressure cooker pressure switch on the cover, there is pressure small card pin does not rebound, stuck pot body, so that the lid can not open.
If the pot has pressure, the security lock will lock the lid, so as not to pan open. And other safety valve will heat out, the security lock will automatically unlock.
There is also a situation, the lid buckle in the opposite direction, the security lock also shows E4, electric pressure cooker heating indicator light is not bright. Only by the instructions will be put on the lid, you can use normally.
If the electric pressure cooker display E4 refers to the pressure switch failure, that is, security lock failure. Generally the electric pressure cooker heating indicator light does not shine, only light power indicator. This is also the safety design of the electric pressure cooker, the safety lock failure is not heated. Should be looking for high pressure cooker aftermarket inspection, maintenance.
