Display shows a vent-related message (e.g. “VENT” or “CHECK VENT”) and pressure program will not start.

Safety first: Ensure the cooker is not under pressure before adjusting the steam release valve.

• Set to SEAL: Rotate or flip the steam release valve to the SEAL position as indicated on the lid.
• Clean valve seat: Remove the valve and clean the seat area on the lid to remove food residue that may prevent proper sealing.
• Check knob fit: Ensure the knob is firmly attached to the valve stem and not slipping.
• When to replace: If the cooker still reports a vent error with the valve correctly set, the vent position switch (on models that have one) may be faulty and require replacement.