E8 error appears, often accompanied by failure to build pressure or premature end of cooking.

Safety: Allow the cooker to cool and depressurize before inspecting the lid components.

Step 1 – Inspect sealing ring:

• Remove the inner lid (if applicable) and take out the silicone sealing ring.
• Check for cracks, hardening, or deformation. A loose or stretched ring will leak steam.
• Clean the ring and the groove in the lid with warm soapy water, then dry thoroughly.

Step 2 – Check valves:

• Remove the steam release valve and clean it; ensure it moves freely between sealing and venting positions.
• Inspect the float valve and its small silicone cap; replace if cracked or stiff.

Step 3 – Visual leak check:

• Run a short pressure program with only water.
• Observe the lid area for escaping steam around the ring, valves, or hinge.

Step 4 – Repair:

• Replace the silicone sealing ring if it shows any damage or if it is more than 1–2 years old.
• Replace worn float valve gasket and steam release valve as needed.
• If the lid or inner lid plate is cracked or warped, replace the complete lid assembly.