TEFAL EPC03 Series Manual page 49

If one of the overpressure safety features is triggered:
Turn off your appliance.
Let your pressure cooker completely cool down.
Open it.
Check and clean the safety valve, decompression ball and gasket. See chapter on Cleaning and Maintenance.
If your product leaks or is no longer operational after having performed these checks and cleaning,
return it to a SEB authorised Service Centre.
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