Steam constantly vents from the steam release valve during pressure cooking and pressure never builds.

Safety first: Keep hands and face away from the steam vent. Turn off and allow pressure to drop before handling the valve.

• Check valve position: Ensure the steam release knob or lever is set to Sealing for pressure programs.
• Clean valve: Remove the valve cap and wash it thoroughly. Clear any food particles from the vent path.
• Inspect seal and spring: Check the rubber seal under the valve for cracks or flattening and ensure the spring moves freely. Replace the valve assembly if worn.
• Re-test: Refit the valve and run a water-only pressure test.