It is possible that the fuse of the rice cooker is broken, which is caused by many reasons. The bottom of the rice cooker is not clean or there is something else on the heating plate at the bottom, which makes the bottom of the inner container of the rice cooker unable to contact the heating plate completely. The heating plate is always at home and can only burn fuses. In this case, it is necessary to clean the bottom of the liner and the heating plate to make them fully contact. It is also possible that the inner container of the rice cooker has been deformed and needs to be replaced in time.