Office workers are basically very busy, and all the time is paid for a lot of work, which leads to frequent eating of fast food. Although eating fast food is more convenient and time-saving, it is still not as healthy as cooking by yourself. If you want a healthy body, many people choose to cook on weekends, which is healthy, nutritious and delicious.
The rice cooker stopped cooking at the weekend and suddenly went on strike. What should I do? This makes office workers very embarrassed. They usually use less and don't know much about it.
Common problems of rice cookers that can't cook;
1. Cooking failure: The normally closed contacts of the thermal insulation switch may be sintered and stuck together. Although the rice is cooked and the temperature limiter has jumped, the heat preservation switch continues to energize the heating pipe, and the rice is cooked.
Maintenance method: (1) At this time, the contact can be separated with a knife, and then the surface of the contact can be cleaned with fine sandpaper, which can basically alleviate the problem of cooking;
(2) If the above method cannot be solved, it needs to be replaced together with the heating plate, which can be fundamentally solved.
2. The heat preservation lamp is on, but the cooking lamp is not. Trouble: When cooking, the heat preservation light indicating cooking is not good, and cooking can be carried out normally, but it is not convenient to check whether the rice is cooked.
Maintenance method: (1) The heating plate does not generate heat and the power cord is defective;
(2) The heating plate does not generate heat, but the contacts of metal switches are usually ignited and oxidized. Use sandpaper or small file to polish the contact surface;
(3) Heat the heating plate and check the cooking indicator lamp and current limiting resistor.
3. Cooking failure: When cooking, after a while, the water is still at room temperature, and the rice is still the original rice and water, so the rice cooker can't cook.
Maintenance method: (1) If the source conductor is broken, check the power conductor with an ohmmeter;
(2) The current limiting resistor is fused. At this time, you can check the resistance with an ohmmeter. If the resistor is blown, it is necessary to replace the current limiting resistor of the same model, and it cannot be replaced directly with wires;
(3) The heating tube is burnt out, and the infinite flow resistance rice cooker works for a long time, which burns out the heating tube. You can check the heating pipe with an ohmmeter. If it is broken, it needs to be replaced with the heating plate.
4. When the rice is brown, the magnetic steel lever can't fall off, and the fault is automatically reset: when cooking, after a period of time, the color of the rice is a little yellow.
Maintenance method: (1) The compression spring in the magnetic steel temperature limiter is not elastic enough or loses its elasticity. Check the spring performance and replace the magnetic steel temperature limiter;
(2) The spring is blocked by foreign matter, so remove the foreign matter or replace the magnetic steel temperature limiter;
(3) The magnetic steel lever is inflexible, skewed and suspended. Check the installation of magnetic steel temperature limiter and lever bracket, and adjust or replace magnetic steel lever assembly.
5. Plug in the power plug, and the power fuse will be blown immediately. Trouble: When you plug in the power plug and turn on the power, the fuse will blow and you can't cook.
Maintenance method: (1) water or rice soup enters the power socket of the rice cooker, causing short circuit. In this case, you can dry the water in the socket and then continue to use it;
(2) Due to long-term use, the surface of the power socket or plug of the rice cooker is carbonized and short-circuited. In this case, the carbonized layer on its surface can be ground off with fine sandpaper and cleaned with alcohol.
6. The circuit board cannot automatically enter the state of stewing and heat preservation. Trouble: When cooking, the rice cooker can't automatically enter the stewing and heat preservation state.
Maintenance method: (1) After inspection, it is found that the main circuit board of the rice cooker is damaged and needs to be replaced, which can solve the problem;
(2) It is also possible that the main thermostat is abnormal and needs to be replaced.
7. Failure to cook uncooked rice: When the rice is cooked, it is found that the rice grain is uncooked rice, as if there is less water. Next time you put more water, it will still be the same.
Maintenance method: (1) is generally caused by the weakening of the magnetic force of the permanent magnet ring in the temperature limiter. You can take apart the temperature limiter of the rice cooker and check whether the magnetic ring is broken and how attractive it is.
(2) If the permanent magnet ring is broken, the temperature limiter of the same model must be replaced;
(3) If the suction is reduced, the temperature adjusting screw on the temperature limiter can be adjusted by 1/4 turns at a time, and try to eat once. 8. Can't keep warm after cooking: When the rice is ready, it can't automatically enter the state of keeping warm.
Maintenance method: (1) It may be the normally closed contact of the thermal insulation switch, and the surface is dirty or ablated, so that the contact resistance of the contact is too large, which leads to the closure of the contact and the circuit blockage, the heating pipe does not generate heat, and the rice cooker does not keep warm.
(2) Clean the contact surface with fine sandpaper and plate it with a layer of tin. If the insulation still cannot be maintained, the insulation switch can be replaced.
To sum up, Bian Xiao mainly summarized the common faults and maintenance methods of rice cookers that can't cook, hoping to help everyone. There are eight major faults in rice cookers that can't cook. You can check the fault of the rice cooker yourself. Find the reason and fix it first. If it doesn't work, please find a professional master to repair it.