Pressure cooker not getting gas

. Peripheral air leakage: check whether the cover is in place; check whether the rubber ring is installed in place, whether the rubber ring is worn; check whether there are foreign objects on the bottom of the inner liner or the surface of the heating plate; check whether the mouth of the inner liner is deformed (the mouth of the gallbladder is not round, partially deformed, cackling, etc.);

2. Float, safety eye leakage: check whether the float pad or float is broken, peeled off, not installed in place, etc.; check whether the cover is in place; observe whether the float is stuck at the float hole. Close the lid in place, observe the float hole float is stuck

3, hammer leakage: check whether the hammer is in the sealing position; check whether there is a foreign body in the hammer seat; check whether there is a deformation at the bottom of the hammer seat;

4, the middle of the lid leakage (side flip cover model): check whether the nut and the lid of the lid fixed to live on a small adhesive ring (visual observation) is off; check whether the lid fixing nut Whether to tighten; temperature measuring rod nut reverse installation.