When you use the pressure relief valve, it is closed and you can't let it vent. Place the pressure relief valve, turn it to the "Seal" position, and check that the float valve is down (it is down before heating).

Expanded information:

When using, firstly, we should carefully check whether the vent hole is free, whether the hole under the safety valve seat is blocked by residual rice or other food residues. If it is blocked by food during use, the pot should be moved away from the source of ignition. Aging rubber rings are prone to make the pressure cooker leak, for this reason, it needs to be renewed in time.

The handle of the lid must be completely overlap with the handle of the pot, before the power to cook food, otherwise it will cause the explosion of the pot flying lid accident.

When using someone unauthorized in the pressurized valve to add weight, in order to make the pressure inside the pot to increase, forcibly shorten the production time. Do not know the size of the pressure inside the pot is a strict technical parameters, ignoring this scientific design, is tantamount to joking with their own lives, will cause the pot burst the serious consequences of human injury, must not take this risk! In addition in the use, if the pot on the fusible metal piece (plug) once off, never allow other metal objects to plug instead, should be replaced with a new piece of the same kind.

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