U02 warning appears; cooker beeps and may not enter pressure mode.

Safety first: Ensure the cooker is cool and not under pressure before handling the steam cap.

• Verify correct cap: Confirm you are using the original Tiger steam cap designed for your model. Other caps may not engage the sensor correctly.
• Clean and reinstall: Remove the steam cap, rinse it, and clean the mounting area on the lid. Dry thoroughly and reinstall, aligning any arrows or marks and turning until it clicks or locks.
• Check for damage: Inspect the cap's underside and the lid post for cracks or deformation. Replace the cap if damaged.
• Test operation: Start a basic program. If U02 persists with the cap correctly installed, the cap-detection switch or sensor may be faulty.