Nowadays, almost every house has microwaves. At the same time, there are a lot of models on the market. In general, microwave designs are very similar, but there are differences. Thus, each manufacturer has its own weaknesses. In order to start repairing microwave ovens with your own hands, you need to make a complete diagnosis. As a result, it is necessary to obtain comprehensive information about the breakdown, and only then take any measures.
Repair of a microwave "Eldzhi"
This company is considered famous. At the same time, it produces high-quality goods, and it rarely breaks. If we consider specifically microwave ovens, then most often the problem is a vacuum lamp. This part is called a magnetron. The main duty of this element is to create radiation. Thanks to this, it is possible to influence the water that is in the food. In this case, it is important to note that magnetrons are produced with different frequencies. In order to check its performance, the part should be removed. Do-it-yourself microwave repair (LG in this case) begins by unscrewing the back cover of the model.
Next you can see the small cap. In some models, it is covered by a casing. In such a situation, he is first removed, and then the cap. As a result, you can see the flange, which is located next to the magnets. In many cases, it is directly connected to the radiator. You can finish the repair of the microwave oven with your own hands (LG) by pulling out the flange by unscrewing the magnets. After that, you will see a magnetron that looks like an ordinary box. It is attached to the microwave housing on small clips that need to be turned to the side to open. Thus, the magnetron can be safely removed for replacement.
Magnetron Replacement
Before you start repairing your microwave ovens with your own hands, you must definitely turn off the device. In order to correctly replace the magnetron, first of all, you should familiarize yourself with its modification. As a rule, the marking of this element is located on the side panel. Before buying a new magnetron, it is best to evaluate the deterioration of the device. In this case, you need to look at the condition of the casing.
It is important to check the integrity of the filter that is inside. This can be done only by unscrewing the bolts on the side panel. The filter itself is a disk of small diameter. If the microwave oven is used improperly, it may be damaged. In this case, it is most advisable to try to replace it with it, and not with the full magnetron. If, however, the entire mechanism is damaged, to install it, you must again remove the back cover of the microwave. After this, it is important to correctly install the magnetron for fixation. This can be done very simply by looking at the markings. Ultimately, it should be on the right side. In this case, the clamps will fall into place, and it will be possible to re-screw the flange. After this, make a trial inclusion of the unit.
Samsung microwave repair
Many models of this company suffer due to the circuits that the Samsung microwave has. Do-it-yourself repair is necessary only after the device is de-energized. It is important to note that such failures most often occur in connection with voltage drops in the network. To understand this issue, you should familiarize yourself with the structure of the microwave circuit.
It consists of a control and executive parts. The first system is presented in the device as a microcontroller. Its main task is programming. It is with the help of the microcontroller that the display of the model receives signals.
He also controls the touchpad. Thus, circuit problems are very easy to recognize. In some cases, the microcontroller only partially fails. In such a situation, the information can be displayed, but the touch panel will not work. Also, things can turn out the other way around. All this suggests that the buffer elements of the circuit are violated. In some cases, they are called transistors.
Circuit replacement
In many models, the circuit is under a magnetron. In order to start repairing the microwave with your own hands (Samsung), you need to get to it by removing the back cover of the device. You can do this by simply unscrewing the four nuts. Next, the person will immediately see the circuit, which is mounted on the sides on the clips. In order to examine the microcontroller completely, it is not necessary to remove it. Simply disconnect it from the circuit.
For this purpose, you need to turn the plate 90 degrees clockwise. As a result, the latch is removed and the microcontroller is released. First of all, you should inspect this element. To do this, check the integrity of the antenna, which is located in the upper part. There is a winding under it, which can also be damaged by prolonged use of the microwave. If there are dark spots on it, the problem is definitely the radiator. This is due to the fact that he failed, and as a result was not able to cool this element.
Thus, the temperature during operation increased sharply, and the winding could not stand it. If everything is intact, but the device does not work, the connector of the microcontroller is last checked. In this case, you need to evaluate the rigidity of its connection with the wire, which leads to the circuit. After that, the element is installed in its original place. If the microwave does not work, you should completely change the microcontroller.
How to repair a Panasonic microwave?
In some cases, owners of Panasonic microwave ovens may encounter certain problems with the fan as well as the magnetron. When a person breaks down, as a rule, hears a sound uncharacteristic for the device. Also a clear sign of malfunction of the model is an increased glow inside the camera. In this case, sparks can form, and in this case, do-it-yourself microwave repair should begin with replacing the fan.
How to clean the fan?
When starting a microwave repair yourself (Panasonic), you must make sure that the device is de-energized. Fans in many models are mounted near a high-voltage transformer. In order to get to it, you need to disconnect the capacitor. This can be done by removing the back of the microwave. After that, inspect the magnetron, next to which is a high-voltage transformer.
In order to remove it, you need a standard set of screwdrivers. The lower clamps open without a tool. To unscrew the top screws, you will need a Phillips screwdriver. Having removed the high-voltage transformer, you can see the fan. First of all, its contamination should be assessed. In some cases, it is not able to perform its functions due to accumulated dust. Having completely cleaned the fan blades, it is necessary to reassemble everything and restart the device.
Replacing the cooler in the microwave
If cleaning the fan does not help, do-it-yourself microwave repair can be completed by replacing the cooler. Pick it up at any Panasonic service center. It is important to inform the microwave model. After that, unscrew the high-voltage transformer again and remove the fan.
In many Panasonic models, it is mounted in the corners on screws. After replacing the cooler, scroll it by hand. If nothing interferes with the movement of the blades, you can safely install a high-voltage transformer and screw the back cover of the microwave.
Problems with Daewoo models
In general, Daewoo microwave ovens are of good quality. However, they still have standard problems with the magnetron. Additionally, high voltage capacitors can break. In this case, the microwave ovens refuse to turn on. Among other things, the owner may experience certain problems with the door, and this is due to weak fasteners. In this case, you can try to repair the Daewoo microwave oven with your own hands.
Door repair
When the door breaks, the microwave, as a rule, does not turn on. This is due to the fact that the door does not fit snugly, as a result, the sensor does not work, and it is impossible to control the model . In this case, do-it-yourself repair of the microwave door should begin by checking the latch. To do this, first of all, make a visual inspection.
If the door parts are intact and not damaged, it is necessary to check the latch for tightness of contact. To do this, you need to take it with your hand and try to loosen it. As a result, it should not deviate. If the part breaks loose, it should be tightened, and in order to do this, a screwdriver and an awl will be required. The screws on the top and bottom are first unscrewed. Next, under the latch is a small spring.
When it loses its rigidity, the door does not fit well with the microwave. You can check the spring only if you get and inspect the part. A simple awl will help with this, and the door from the upper edge is pry off and reaches down. As a result, the spring should pop out easily.
Loop replacement
If after replacing the latch the problem with the door is still not resolved, repairing the microwave oven yourself (Daewoo) may be delayed. First of all, you need to check the loops. To do this, prepare an awl. It’s best to start from the top. To check the hinge, pry the center axis of the door up. After that, you can inspect the part as a whole.
If there are no cracks, it is necessary to clean the hole and proceed with the inspection of the lower element. When a deformation of the door is observed, the entire hinge will have to be completely changed. You can purchase this item in the service center. It is important when replacing the element not to damage the inner coating of the door and work with an awl carefully.