Display shows P0 and the cooker does not build pressure or heat normally.

Safety first: Ensure the cooker is on a stable surface and unplugged if you need to inspect internal parts.

• Verify program: Cancel the current program and reselect the desired pressure cooking mode according to the Hisense manual.
• Check lid and valve: Ensure the lid is fully closed and the steam release valve is in the sealing position.
• Power cycle: Unplug the cooker for 5 minutes, then plug back in and try again.
• Panel calibration: If touch keys are misbehaving, clean the panel and avoid using wet fingers.
• Firmware issue: If P0 appears regardless of program, the control board may be faulty and require replacement.