Common failures of rice cookers that cannot cook:
1. Burnt rice fault: It may be that the normally closed contact of the heat preservation switch is sintered and stuck together. Although the rice has been cooked and the temperature limiter has jumped off, the heat preservation switch continues to energize the heating tube, and the rice will be burnt.
Maintenance method: (1) At this time, use a knife to separate the contacts, and then use fine sandpaper to clean the contact surface, which can basically alleviate the problem of burnt rice;