What should I do if the Pentium PFFN4005 rice cooker is powered on and does not show up

Yes, the motherboard is powered to the incoming cables normally.

Dear, is it not powered on, the display screen is not lit?

The Pentium rice cooker shows E4 to indicate that the pressure switch is malfunctioning, and this fault is most commonly caused by desoldering of the wire solder joints in the power supply plate.

Solution: This fault can be found from the solder joint inspection in the power board and control board.

First, unplug the power supply, flip the rice cooker, and open the bottom cover. Please see**.

The second step is to know which is the pressure switch and don't disassemble the wrong one.

The third step, how to disassemble the pressure switch, first remove the connection on the side of the pressure switch circuit board, and then screw a screw, you can remove it, see the appearance of taking it down.

The fourth step, the most critical step, the problem point, the general situation: due to the long-term opening and closing of the pressure switch, the oxidation of the contact leads to the failure of the pass (generally the default is directly on), causing an E4 alarm, or it may be a line problem, which is detected by itself.

Summary. It may be caused by the fact that the circuit of the rice cooker and the power supply are not connected, and a multimeter can be used to check whether the power supply is in good condition and there is no abnormal situation, so as to eliminate the fault. It may also be caused by a loose wiring between the indicator and the buck resistor, or damage to the indicator and the buck resistor.

PFFN4005 5005 Pentium Rice Cooker Power On Display Will Turn Off and On Sometimes, Sometimes It's Normal, Is the Control Display Board or Power Strip Broken.

It may be that the circuit of the rice cooker and the power supply are not connected to the state, and the multimeter can be used to check whether the power supply is in good condition and there is no abnormal situation of slag, so as to eliminate the fault. It may also be caused by a loose wiring between the indicator light and the buck resistor, or a damage to the indicator lamp and the buck resistor.

There are also several types of middle limbs: 1. The indicator light is not on when it is on, which is mainly due to the fact that after the rice cooker has been used for a period of time, the insulating sheet and nut of the socket and switch and other parts are loosened due to repeated heating. 2. The indicator light will be on for a while and then extinguished, if this situation occurs, it is impossible to cook rice, because the temperature in the pot can only be maintained at about 70 degrees, and it cannot reach 135 degrees at all.

This may be caused by the poor contact of the key switch of the rice cooker, and it may also be caused by the fact that the key switch is not in contact at all.

1. There is no correct connection circuit. 2. The household voltage is too low to support the normal operation of the rice cooker. 3. The internal parts of the rice cooker are faulty. 4. The rice cooker has been used for too long, and its life has been reached.

Suggested Treatment:

1. First check whether the circuit is connected correctly, if not, it must be plugged and unplugged again, and then re-energized.

2. Use a universal meter to detect whether the household voltage is enough to support the work of the rice cooker, if the voltage is too low, you must contact the power department for maintenance, if you can operate it, you only need to use the supercharger to boost it to return to normal, and do not share a socket with major appliances when you usually use the rice cooker.

3. Once the internal parts fail, we must contact the after-sales department in time, so that the department will send a master to inspect and repair the aftermath of the sale and lease world, and generally only need to replace the parts to restore normal.

4. No matter what electrical appliances have a certain life span, if the internal parts reach this time, generally speaking, the main components will be damaged, even if the maintenance is not able to work normally at this time, we must replace the new machine in time, the current rice cooker will not be very expensive, you can choose a relatively high cost performance, or a big brand, will be used for a longer time.

Common faults of pro-Pentium rice cooker: 1. The indicator light is not on, it may be that the heating plate is not heating or the heating plate is overheating, the reason is that the power supply is not connected, the power cord is faulty, the circuit board is faulty, and the motherboard is faulty; To solve the problem of guessing caution, check the power supply of the switch box, or send it to the maintenance office for maintenance. 2. If the heating plate is not hot, it may be that the thermal resistance at the bottom is damaged, or the heating element is damaged, or it may be that the power cord circuit board is faulty.

It can be sent to the maintenance office for warranty 3, porridge overflow, motherboard failure or seal ring failure. 4. If the cooking is not cooked, or the cooking time is too long, it may be due to the failure or deformation of the electric heating plate, or the inner pot is not placed, or it may be that the motherboard is faulty, or the thermostat has abnormal signs. 5. Cooking rice is scorched and, can not be automatically kept warm, motherboard failure or thermal and electric fault, 6, liquid crystal display:

e1, the bottom sensor is short-circuited, the temperature is too high. E2, the sensor is open, the temperature is too low. E3, the upper cover sensor is open, the temperature is too high, E4, the upper cover thermistor is short-circuited, the temperature is too low.

His brain is broken, and he needs to fix ......No, to be honest, the wire may be connected incorrectly or the fan may be broken.

1. The sensor on the lid of the Pentium rice cooker fails to sense the temperature.

2. The lead wire on the lid of the Pentium rice cooker is short-circuited.

Solution: 1. Replace the Pentium rice cooker or turn on the sensor to return to normal.

2. If you replace or turn on the sensor or there is still a failure of the Pentium rice cooker**E4, please go to a professional maintenance point for maintenance.

Pentium rice cooker is the perfect combination of modern technology and traditional cooking products, the main representative products are earthen stove pot, the first delicious pressure regulator, according to different cooking modes such as rice, soup porridge, steaming, etc., free control of pressure, Seiko technology, the achievement of expert quality; It has a 6mm ultra-thick kettle bottom, which retains the wisdom of the heat and simmers the original rice fragrance.

Functional features: 1. Through the study of the rice cooking process and the nutrient release law of rice grains, a unique six-stage intelligent cooking program has been developed.

2. Each grain of rice can fully absorb water, better lock the nutrition of rice, and the cooked rice is full of Q bomb and sweet grains.

3. Three-dimensional heating, the heat from the upper cover, side wall, and bottom of the pot is fully attacked, forming an all-round three-dimensional heating space, so that the rice is heated more evenly, absorbs water more fully, and cooks out the rice firewood.

4. The first delicious pressure regulator can freely regulate the pressure according to different cooking modes such as rice, soup porridge, steaming, etc.

5. Industry-leading"Detachable inner cover"It is easy to disassemble, easy to clean, and has a classic corrugated design to avoid the accumulation of water vapor, prevent the formation of rice, and retain the original rice fragrance.

6. A variety of cooking functions, cooking rice, soup, noodles, cakes are proficient in everything, to meet a variety of cooking needs.

7. Pentium Electric and the chip company jointly developed and realized the 24-hour ultra-long reservation function of the rice cooker, so that you can work and live without mistake.

8. Non-slip feet make the rice cooker and the cooker body easy to fix the position.

The Pentium rice cooker shows **E4, indicating that the temperature control is faulty for the following 2 reasons:

1.The sensor on the lid of the Pentium rice cooker fails to sense temperature, 2The lead on the lid of the Pentium rice cooker is broken, and the solution is:

1: The Pentium rice cooker can be replaced again or the sensor can be turned on to return to normal:

2. If you replace or turn on the sensor or there is still a failure of the Pentium rice cooker**E4, please go to a professional maintenance point for maintenance.

The Pentium rice cooker shows **E4, indicating that the temperature control is faulty for the following 2 reasons:

1.The sensor on the lid of the pot is out of order.

2.The upper cover leads are disconnected.

Replace it again or turn it on to return to normal, please go to a professional repair point for repair.