Common problems with commercial drum type rice cookers

In fact, as long as the rice pot takes good care of the inner container, avoids collisions, and handles it gently, the surface of the heating plate and the bottom of the inner container should be wiped clean before each use. As long as the heating plate and inner container have good contact, there will generally be no malfunction problems, and the service life will be correspondingly long. If there is poor contact between the heating plate and the inner liner, the first common malfunction is that the rice is not cooked well, the second is that the safety tube is burnt out, and the third is that the rice is cooked with paste. If you continue to use it for a long time, the heating plate will gradually deform or burn out, and eventually cannot be used again.
There are many customers who usually replace the base of the rice cooker when there is a malfunction in the rice cooker, ignoring the inner liner and not replacing it with a new one. This is not correct because fault problems usually occur
If the inner liner of the rice cooker is dented and deformed, even if it can be used several times without being replaced, it will still cause malfunction after being used for a period of time.
Many users have rice or other foreign objects stuck on the surface or bottom of the heating plate before using it without cleaning it thoroughly. If the inner container and the heating plate have poor contact, it can cause undercooked rice or burn the safety tube, and in severe cases, it can also burn the heating plate or other components.
Also, it should be noted that the inner liner must be placed in the middle of the heating plate and not leaning to one side, otherwise it may cause poor contact between the heating plate and the liner, resulting in undercooked or uncooked rice.
Fault 1: Undercooked rice
If the rice doesn't cook well after a period of use
Reason 1: Generally, it is caused by poor contact between the inner liner and the heating plate. You can check if the bottom of the liner is uneven or deformed, and also check if the heating plate is deformed. If the bottom of the inner liner is deformed or uneven, it needs to be replaced. If the heating plate is deformed, it also needs to be replaced.
Reason 2: Check the surface of the heating plate and the bottom of the inner container to see if there is anything like rice burning into carbon stuck on it. This is because many users do not pay attention to this issue. If there is rice or foreign objects stuck on the heating plate, poor contact between the heating plate and the inner container can cause undercooked cooking.
Original website: https://kknews.cc/home/8kn8b2n.html
Reason 3: Magnetic steel loss of magnetism is caused. You can put down the inner liner, press the button, and then lift the button. Repeat the test several times to feel whether the magnetic steel has a high or low suction force. If you lift the button and feel that there is no suction force, or if it doesn't press smoothly, it is usually a problem with the magnetic steel. Replace it with a magnetic steel core of the same model.
2: If a new electric rice cooker is not cooked well the first time it is used
Reason 1: If the proportion of water and rice used by the user is not appropriate, for example, if too much or too little water is used, the user can be told to try cooking rice according to the reference table of rice cooking quantity.
Reason 2: The inner liner is concave or deformed, and there is poor contact with the heating plate. Because the inner liner of an electric rice cooker may be deformed during logistics transportation, it does not necessarily mean that a new electric rice cooker inner liner is good. Therefore, please also pay attention to whether the bottom of the inner liner is concave or deformed.
Reason 3: It is also possible that the user forgot to press the cooking switch. Because our electric rice cooker lights up first when we plug in the cooking light, we need to wait for the heating plate to heat up to around 80 before jumping onto the insulation light. So some users do not press the switch to cook when they see that the cooking light is on, resulting in undercooked cooking.
Reason 4: Press the switch to cook, and the insulation light will jump within two minutes. The button has not yet jumped, which is a problem with the contact point. After pressing the switch, the upper and lower points of the contact point cannot be closed, resulting in no power supply. You can adjust the contact point so that after pressing the switch, the upper and lower points of the contact point can be in contact with the power supply
Fault 2: Cooking with raw or undercooked food
Reason 1: If it is a sandwich rice, it is usually too little water added or too much rice added. You can use the reference table for cooking rice to add water and rice.
Reason 2: Poor contact between the inner tube and the heating plate can also cause this situation. Check if the inner tube and the heating plate are deformed, or if there are conductive materials such as rice stuck between the heating plate and the inner tube
Fault 3: Boiling battered rice (the bottom layer of the pot is black)
Reason 1: The temperature controller is broken, as it will not power off and will continue to heat and power up to cook, resulting in the rice being burnt.
Reason 2: Poor contact between the inner liner and the heating plate can also cause this situation. Check if the bottom of the liner and the heating plate are deformed, or if there are foreign objects such as rice sticking between the heating plate and the inner liner
Reason 3: The stickiness of rice is relatively high, because if the rice with high stickiness is placed for too many meters, it will be difficult for the water at the bottom of the pot to get down. Without sufficient water at the bottom of the pot, it will cause the bottom layer of rice to burn black.
Fault 4: Cooked rice does not turn on the insulation light
Reason 1: The magnetic steel has tripped, the switch button has jumped, and the electric rice cooker will continue to cook. This is because the temperature controller is broken and needs to be replaced with a temperature controller of the same model.
Reason 2: Contact issue. Check if the two points above and below the contact are separate when the switch button is not pressed down. If it is closed, adjust the contact so that the two points above and below the contact are separate when the switch is not pressed down.
Fault 5: Burn the fuse tube
Reason 1: Generally, it is caused by poor contact between the inner liner and the heating plate. You can check if the bottom of the inner liner is uneven or deformed. If the inner liner is deformed or needs to be replaced. Because if the inner liner is dented or deformed, even if the safety tube is not burned, it can cause other malfunction problems, such as undercooked cooking. If used for a long time, the heating plate will gradually deform and become unusable.
Reason 2: There are foreign objects sticking between the heating plate and the inner liner, such as rice and other foreign objects that have poor contact
Reason 3: The temperature controller is broken and will not turn off the power to trip the insulation light. It has been burning the safety tube while cooking, and the rice is also burnt.
Reason 4: When the voltage is too high or too low, it can also burn the fuse.
If a rice cooker burns the safety tube more than twice continuously and the heating plate is not deformed, it is recommended to replace it with a new inner liner. The problem usually occurs due to poor contact between the liner and the heating plate.
Fault 6: No insulation
After cooking the rice for a while, it cooled down. This is because the temperature controller is broken and needs to be replaced with a temperature controller of the same model.
The symptom of a malfunctioning temperature controller is that when the heating plate is not warm and plugged in, the insulation light will turn on, indicating that the temperature controller is malfunctioning. Because a normal temperature controller, without placing the inner liner or pressing the switch, turns on the cooking light first when plugged in, and then heats the heating plate to around 80. It will jump to the insulation light within about two minutes to be normal
Fault 7: Electric rice cooker leakage
Reason 1: The rice cooker has been filled with water or is damp.
Reason 2: The circuit inside the rice cooker has broken skin and hit the middle or outer shell.
Reason 3: The connecting wire of the heating plate is skewed and touches the cylindrical edge of the foot under the heating plate.
Reason 4: The components inside the rice cooker (temperature controller, contacts, heating plate, lamp board wire, porcelain) need to use a professional pressure tester to detect which component is leaking.
Reason 5: Do not plug in when your hands and feet are wet, as it can easily cause contact.

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!