Common troubleshooting of rice cookers

1) Phenomenon: Plug in the power plug and the power fuse will immediately blow.
Maintenance: 1. Water or rice soup enters the power socket of the rice cooker, causing a short circuit. In this case, the socket can be wiped clean and blown dry before continuing to use. 2. The surface of the power socket or plug of the rice cooker is carbonized, in which case it is best to replace it with a new socket or plug. If the carbonization is not severe, it can be cleaned and temporarily used, but it is best to replace it if possible.
2) Phenomenon: Unable to cook.
Maintenance: 1. The power wire is open circuit. Check the power wire using the ohm range of a multimeter. 2. The current limiting resistor is blown. This situation is quite common. At this point, the resistance can be checked using a multimeter's ohm range. If the resistor is blown, it must be replaced with a current limiting resistor of the same model and cannot be careless. 3. The heating tube inside the heating plate is burnt out. At this point, use the ohm gear of the multimeter to check the heating tube. If there is an open circuit, only a new heating plate of the same model can be replaced.
3) Phenomenon: Boiling raw rice.
Maintenance: This fault is generally caused by the weakening of the permanent magnetic ring in the temperature limiter. The temperature limiter of the rice cooker that can be disassembled during the heating process checks whether the magnetic ring is broken and how the suction is. If damaged, only replace the magnetic steel with a new one.
4) Boiled rice paste
Maintenance: This fault may be caused by the sintering and sticking of the normally closed contacts of the insulation switch. Although the temperature limiter also jumped off after the rice was cooked, the insulation switch continued to power on the heating tube, causing the rice to burn. At this point, a small knife can be used to separate the contacts, and then the surface of the contacts can be cleaned with fine sandpaper.
5) Phenomenon: After cooking, the food cannot be kept warm.
Maintenance: This fault may be due to dirt or erosion on the surface of the normally closed contacts of the insulation switch, causing excessive contact resistance, causing the contacts to close and the circuit to be blocked, and the heating tube not working. At this point, the contact surface can be cleaned with fine sandpaper and polished smooth. If the erosion is severe, the insulation switch can only be replaced with a new one.
When repairing an electric rice cooker, it is important to note that due to the strong electricity passing through the inside of the cooker during operation, and most of the internal components are exposed, it is necessary to ensure that all components with strong electricity do not touch the outer shell of the cooker during maintenance. After the repair is completed, be sure to use the ohm range of the multimeter × The insulation resistance between the 10k gear measuring plug and the shell of the rice cooker must be ensured to be infinite before use.

The above content is organized by Superb heater Company, super heater. Mainly professional production: industrial heating elements, temperature measuring elements, production equipment, accessories, and raw materials such as tubular heaters, tubular heaters, belt heaters, ceramic heaters, silicone rubber heaters, thermocouples, etc.

Welcome global industry partners to discuss cooperation!