7 Common Faults and Maintenance Methods of Electric Rice Cooker

1、 Fault phenomenon: The indicator light is not on and the heating plate is not heating. Repair method:
1. First, check if the plug of the power cord has poor contact.
2. Check if the overheat fuse of the rice cooker has blown. If it has blown, first check if it is caused by deformation at the bottom of the rice container or if there are rice grains on the bottom of the rice container and the surface of the heating plate, causing the magnetic steel test temperature to be inaccurate, causing the heating plate temperature to be too high and causing the fuse to blow. To replace a good fuse, it is necessary to solve the above problems first.
2、 Fault phenomenon: The indicator light is on and the heating plate is not heating. Repair method:
1. The automatic rice cooker first checks for poor contact or detachment of the two electrode wires connected to the heating plate, and then checks whether the heating wire inside the heating plate is disconnected. Identify the fault and replace the corresponding accessories.
2. Check the electronic rice cooker according to the first item first, and if not, replace it with a good electronic light board.
3、 Fault symptom: Poor cooking and repair method:
1. When the cooking switch button is pressed and powered on for ten minutes, the "cooking" and "insulation" lights continuously switch on, and the magnetic steel switch contacts for cooking cannot be closed. Treatment method: Use a blade or sandpaper to scrape off the contact oxide on the metal sheet of the magnetic steel lever, and adjust the elasticity of the metal sheet.
2. The aging of the magnetic attraction of the magnetic steel temperature limiter can be replaced.
4、 Fault phenomenon: The rice bottom is burnt. Maintenance method:
1. Keep the contacts of the insulation temperature controller open, and adjust the contact distance of the bimetallic sheet of the insulation temperature controller slightly further.
2. The temperature controlled by the magnetic steel temperature limiter is too high. Use pliers to lift the lever parallel to the pull rod connection of the magnetic steel temperature limiter by an angle of 20 degrees, or replace the magnetic steel temperature limiter.
5、 Fault phenomenon: Unable to keep warm after cooking. Maintenance method:
If the insulation temperature controller fails, replace it.
6、 Fault phenomenon: Shell leakage maintenance method:
1. There are water droplets on the plug of the power cord. Clean the plug with a tissue or dry it with a hair dryer.
2. The iron foot of the heating plate's electrode has rust. Use a blade or sandpaper to clean the rust and then seal it with insulating tape.
3. The insulation of the internally charged insulation wire is broken and laid on the metal shell.
4. Rust, poor contact or looseness between the shell and the grounding wire.
7、 Fault phenomenon: Heating plate melting, base melting maintenance method:
1. If the white porcelain small particles on the insulation temperature controller fall off, this phenomenon can occur. Replace the insulation temperature controller and the fused heating plate.
2. The lever contacts of the magnetic steel temperature limiter are closed and continuously open, without being controlled by the lever. Simply adjust the height of the contacts. (If it is controlled by a microswitch, it should also be checked whether the control point of the switch is pressed down by a lever and whether the microswitch is damaged.)
3. The deformation of the bottom of the rice container or the separation of rice grains between the bottom of the rice container and the surface of the heating plate results in inaccurate temperature measurement of the magnetic steel temperature limiter, leading to the melting of the heating plate due to excessive temperature. Replace the damaged inner liner and heating plate.
4. The spring inside the magnetic steel temperature limiter is weak or has debris, causing the magnetic steel spring to not spring open. Replace the magnetic steel temperature limiter.
Note: If unusual odors are emitted during use, the power should be immediately turned off, the cause should be identified, and the above methods should be followed to troubleshoot the rice cooker to minimize damage.

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.

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