1. Overheating caused by dry or charred food-overhaul the seal ring
2. Failure to drain water and heat food-draining water and food as required
3. Failure to put the inner pot-putting the inner pot
4. Failure of the display board-replacing the display. Board
5. Temperature controller failure-replace temperature controller
6. Pressure sensor failure-replace pressure sensor
7. Micro-switch of lid is not installed properly or damaged-readjust or replace micro-switch of lid
8. Temperature sensor is not installed properly or damaged-readjust or replace temperature sensor.