Although the rice cooker is not very eye-catching, it is essential!
It is no exaggeration to say that without it, Xiao Ju can't eat!
But very helpless. I wonder if it's the same as a rice cooker. There are always some problems when rice cookers are used for a period of time.
Throw it away, what a pity!
Find someone to repair it, the price is a bit high!
Fix it yourself? Yes, in order to save money, Xiao Ju decided to do it himself.
After a period of data collection and research, Xiao Ju sorted out nine common faults and maintenance methods of rice cookers. Let's share it with you today!
Fault 1: plug in the power supply and the fuse will blow out immediately.
Reasons and maintenance methods:
1, short circuit caused by water or rice soup in the power socket of the rice cooker. In this case, the water in the socket can be sucked out with a paper towel, and then the socket can be dried by the cold air of a hair dryer for reuse;
2. The power socket or plug of the rice cooker has been used for too long, and the surface carbonization leads to short circuit. In this case, the carbonized layer on the surface can be gently ground off with fine sandpaper, then cleaned with alcohol and dried.
Fault 2: No power supply
Reasons and maintenance methods:
1, the safety is burnt out. Insurance replacement (300W- 1000W means 10A insurance, 1600W-3950W means 15A, 20A insurance or replacement of connecting wires);
2. There is something wrong with the line. Check the wiring.
Fault 3: the heat preservation light is on, but the cooking light is not on.
Reasons and maintenance methods:
1, the heating plate is not heating, and the power cord may be broken. Check the line;
2. The heating plate does not generate heat, or the contact of the metal switch may be ignited and oxidized. Use sandpaper or small file to polish off the oxidized part of the contact;
3. The heating plate is hot. Check the lamp plate. If it is broken, replace it with a new one.
Problem 4: I can't cook.
Reasons and maintenance methods:
1, the power cord is open. Check the power cord with an ohmmeter;
2. The current limiting resistor is blown. At this time, you can check the resistance with an ohmmeter. If the resistor is blown, the current-limiting resistor of the same model must be replaced, and it cannot be replaced directly with wires;
The heating pipe is burnt out. The rice cooker without limited current resistance works for a long time and burns out the heating tube. At this point, check the heating pipe with an ohmmeter. If the circuit is broken, it must be replaced with the heating plate.
Fault 5: Boiling pot
Reasons and maintenance methods:
1. Due to long-term overload use or water inflow, the normally closed contacts of the thermal insulation switch are sintered and stuck together. Although the rice has been cooked and the temperature limiter has jumped off, the heat preservation switch continues to energize the heating pipe and keep heating, causing the pot to paste. At this time, you can separate the contacts with a knife, and then clean the contact surface with fine sandpaper.
2. The trip temperature of magnetic steel is wrong, and the trip temperature of magnetic steel for different sizes of pots is different. For example, 700W pots and 2500W pots are easy to paste. Phase transformation matching magnetic steel.
3, iron pot liner due to heat transfer, heat dissipation and other reasons, it is easy to paste the pot, rust, sand holes, it is best not to choose a heavy iron pot liner.
Fault 6: Boiling uncooked rice
Reasons and maintenance methods:
1, the ratio of rice to water is wrong, and there is less water. Adjust the ratio of rice to water and try again.
2. Generally, it is caused by the weakening of the permanent magnet ring in the temperature limiter. At this time, you can disassemble the temperature limiter of the rice cooker and check whether the magnetic ring is broken and how attractive it is. If the permanent magnet ring is broken, the temperature limiter of the same model must be replaced; If the suction decreases, the temperature adjusting screw on the temperature limiter can be adjusted by 1/4 turns at a time, and try to eat once.
3. There is a foreign body at the joint between the bottom of the pot liner and the heating plate. Clean up dirty foreign bodies;
4. The pot liner is deformed, or the heating plate is deformed by artificial strong heating after the pot liner is deformed, so that the pot liner cannot contact with the heating plate. Shape the pot liner, replace the pot liner or replace the heating plate;
5, magnetic steel suction or elasticity is not good. Replace it with new magnetic steel.
6. The temperature control is broken. Replace the temperature control device (1600W-2000W for 10A temperature control device 2800W-3950W for 15A-20A temperature control device).
Tips: The rice cooker trips ahead of time, which means there must be some reason or fault. Be sure to find out the reason first, and don't press the button blindly to force heating, which will burn the heating plate or cause other dangers.
Problem 7: Cooking takes a long time.
Reasons and maintenance methods:
Use a multimeter to measure whether a group of heating tubes in the heating plate are burnt out. If there is something wrong with the heating plate, please replace it with a new one.
Fault 8: There is no automatic heat preservation.
Reasons and maintenance methods:
1. If the main thermostat is abnormal, replace it;
2. The surface of the normally closed contact of the thermal insulation switch is dirty or ablated, which makes the contact resistance of the contact too large, resulting in the contact closure, the circuit is blocked, the heating tube does not heat up, and the rice cooker cannot keep warm. At this time, the contact surface can be cleaned with fine sandpaper and plated with tin. If the insulation still cannot be maintained, the insulation switch can be replaced.
Fault 9: Electric leakage
Reasons and maintenance methods:
1, wrong connection. Check the wiring diagram of other new pots and rewire;
2. The heating tube in the heating plate leaks electricity. Replace the heating plate;
3. Water or moisture. Remove water with a clean paper towel, put it in a cool place to dry or blow dry with a hair dryer;
The above are the common faults and maintenance methods of rice cookers compiled by Xiao Ju, hoping to help everyone.