Steam continuously escapes from the pressure release valve during cooking and pressure never builds properly.

Safety first: Keep hands and face away from the steam outlet. Allow the cooker to depressurize before disassembling the valve.

Steps to restore valve sealing:

• 1. Check valve position: Ensure the pressure release knob or lever is in the 'Seal' or 'Pressure' position as specified in the Steba manual.
• 2. Clean the valve: Remove the valve cap from the lid. Rinse all parts under warm water and use a small brush to remove food particles. Ensure the valve pin moves freely.
• 3. Inspect valve gasket: Examine the small silicone or rubber seal on the valve. Replace it if cracked, hardened, or misshapen.
• 4. Reassemble correctly: Refit the valve components in the correct order and orientation. Refer to the manual or photos taken during disassembly.
• 5. Test pressure build-up: Run a water-only pressure cycle and confirm that steam stops venting once pressure is reached.

If the valve body is damaged or the spring has lost tension, replace the entire pressure release valve assembly.