Reason and maintenance: This fault may be that the normally closed contacts of the heat preservation switch are sintered and stuck together. Although the rice has been cooked and the temperature limiter has also jumped down, the heat preservation switch continues to energize the heating tube, and the rice is mixed. At this point, you can use a knife to separate the contacts, and then clean the surface of the contacts with fine sandpaper.

Cause and maintenance: This fault may be that the surface of the normally closed contact of the heat preservation switch is dirty or ablated, which makes the contact resistance of the contact too large, causing the contact to be closed and the circuit to be blocked, the heating tube does not heat, and the rice cooker cannot be kept warm. At this time, the contact surface can be cleaned with fine sandpaper and then plated with a layer of tin. If it still does not keep warm, replace the keep warm switch.

Reason and maintenance: 1. Water or rice soup enters the power socket of the rice cooker, causing a short circuit. In this case, you can continue to use it after drying the water in the socket; 2. The surface of the electric socket or plug of the rice cooker is short-circuited due to carbonization due to long-term use. In this case, the carbonized layer on the surface can be polished off with fine sandpaper and wiped with alcohol.