1. Open the inner aluminum cover with a flat screwdriver. Open carefully, do not damage the corner pegs.
2. Fix the rubber ring in this orientation over the aluminum cover. Watch which side is facing the exterior.
3. Put back the inner aluminum cover. Be careful not to dent the fragile aluminum conner pegs.
Note: If the rubber ring is fixed wrongly, the inner steam pressure will leak from the side of the cooker cover, water will not boil.
Reference: Tefal 8-in-1 ceramic rice cooker.