The development of any electronic information science and technology is inseparable from electronic components.
In addition to the fault code of E series, the automatic pulsator washing machine also has the fault code of F series. Some of these fault codes are basically the same as those of E series. But some fault codes represent different fault locations. The following continues to introduce the causes and solutions of code generation. Like E-series code, we also start from scratch.
Code F0, like E0, is also a trip fault alarm fault. You can refer to the solution and detection steps of zero failure code in the previous chapter.
Code F 1, the appearance of this code is different from that of E 1, and the fault location it represents is a communication fault. We focus on the parts that have communication failures with the motherboard, and we need to check them one by one. But it is more troublesome to detect. We can do the same.
Look at the time when this code is displayed, for example, a fault code is displayed as soon as it is turned on. Then this code may appear on the motherboard itself. Because as long as the boot, the motherboard will self-check, the motherboard has a fault, and if the self-check is unsuccessful, the fault code will be displayed. We just need to replace the motherboard or repair it.
For example, if there is a fault code before water inlet, then this fault may appear between the water inlet solenoid valve and the motherboard. We can check the motherboard and the intake solenoid valve one by one. After finding the fault point, it can be repaired or replaced.
Another example is the fault code before dehydration. Then this fault may appear on the motherboard and traction motor. We can also detect these two fault parts, and after finding the fault point, we can repair or replace them. Specific steps can refer to the previous chapter.
Code F2, the fault location represented by this code is the read-write error of the memory chip EEPROM. That is to say, there is an error in reading and writing the data in the chip memory, or it cannot be read, or it is a reading error. The fault may be the chip or the memory. If the storage area is an experienced maintainer, it should be replaceable separately. At present, we have no special equipment. If we only use manpower, we can't repair this faulty part of the chip, so we can only replace the motherboard.
Code F3. The fault represented by this fault code is Hall sensor alarm. The position of the Hall sensor in the washing machine motor is basically attached to the washing machine motor. Hall sensor alarm indicates that the Hall sensor itself is faulty or the motor is running abnormally.
To put it bluntly, the Hall sensor is a small version of the computer. When the washing machine motor is running, he is always monitoring whether the motor is running normally. If the motor runs abnormally, he will call the police directly, and then stop the washing machine to display the fault code. The overall structure of Hall element consists of a small computer board and a magnet. The voltage is input into this small computer version, and then the induced voltage output by the small magnet of the computer version is fed back to the Hall element signal through the magnet, so as to achieve the purpose of normal operation of the Hall element.
There is something wrong with Hall element, which is very common in washing machines, household appliances and general equipment. We can replace a Hall element of the same model and then check whether the washing machine is working properly. Because in this case, the Hall element is basically out of order. Because the motor itself is unlikely to go wrong.
We can also directly detect whether the resistance of the motor is normal, that is, whether there is resistance or on-off at both ends of the coil of the motor. So as to judge whether the motor is good or bad. Then replace or repair the problem parts.
Code F4. The appearance of this code represents the motor error alarm of the washing machine or the zero-crossing detection error of the computer version. In other words, it may be a problem with the motor, the computer board or the power supply at home.
The first thing we need to do is to measure whether the power supply voltage at home is stable or fluctuating. If this happens, we only need to install a voltage regulator to solve the problem.
If there is no problem with the power supply voltage at home, then there may be a problem with the motherboard and the zero-crossing detection circuit of the motherboard, which can only be solved by replacing the motherboard.
Generally speaking, the motor error alarm is caused by the motor or the motherboard. We can directly detect whether the motherboard delivers normal voltage to the phase motor. If the motherboard has transmission voltage, it means that there is nothing wrong with the motherboard, and we can directly detect whether the motor resistance is normal. Whether the motor is open or grounded. Find the fault point of the problem and repair or replace it directly.
Code F5. This fault code indicates that there is something wrong with the washing machine motherboard or temperature sensor. Stands for IBM temperature overheat alarm. In this case, we can only replace the motherboard, because this failure is generally caused by the long use of the washing machine or the aging of the washing machine motherboard.
Or the temperature sensor of high-end washing machine with heating function detects that the water temperature is too high and gives an alarm. It is this washing machine that has heating function. It may be the motherboard or the water temperature sensor. Find the fault point of the problem and solve the maintenance or replacement.
Code F6, which stands for IBM overcurrent alarm. He represents the motherboard problem. The chip on the motherboard is aging or the chip itself has quality problems. Only the motherboard can be replaced.
Code F7, which indicates the temperature sensor alarm. In other words, this code of washing machine has a heating function, and there are temperature sensors and heating rods inside.
The fault location of the problem appears on the water temperature sensor and the motherboard. We first need to check whether the motherboard delivers 5V voltage to the water temperature sensor. If there is voltage, there is nothing wrong with the motherboard, but there is something wrong with the sensor, so we can just replace a sensor directly. If there is no voltage, there is something wrong with the motherboard. Replace the motherboard directly.
Code F8. This code in the washing machine represents a water level sensor failure. But it does not rule out the problem of the motherboard. Let's first check whether the motherboard delivers voltage to the water level sensor. If the motherboard has voltage output, there is nothing wrong with the motherboard. If there is no voltage output, there is something wrong with the motherboard. We just need to repair or replace the defective parts.
That's all for today's fault code. Will continue to update later. If there are codes that need other electrical appliances, you can also look at my previous works. Remember to like it if it helps you.