How to check the magnetron in the microwave

Unfortunately, every technology has its own life, and microwaves are no exception. Sometimes we are confronted with the fact that it takes longer to heat up the dishes than usual. And sometimes the device works fine, but the food remains cold. Often the reason for this behavior of the microwave is a faulty magnetron. Where is this part and how to check it?

What is a magnetron

Microwaves can vary greatly among themselves, but there is one detail, without which no existing model can work, be it Samsung, Philips or another well-known brand.

It is on the quality magnetron that the whole depends microwave oven operation.

What does this detail consist of?

1. To emit waves, the device is equipped with a special antenna.
2. To isolate the antenna from the working surface, a special cylinder made of high-quality metal is used.
3. For the distribution of magnetic fields is a special magnetic circuit.
4. But for the distribution of flows are responsible magnets.
5. In order for the part not to overheat, an important component for it is a radiator.
6. To prevent the radiation of the microwave oven from bringing harm, the magnetron is equipped with special filters.

Diagram of the device magnetron

Such a design as a magnetron is understandable only to professionals. Repairing it yourself is a laborious and ungrateful process. If you are sure that the problem lies in it, it is better to contact a specialist.

What problems may arise

After examining the device of the magnetron, it becomes clear that not all the details fail. It may not work any of its parts, which must be installed. There are several common causes of breakdowns. How to check the magnetron and find out exactly where the fault lies?

1. One of the important components of the magnetron is a special cap that maintains the vacuum of the pipe.If the problem is in it, then it will not be difficult to replace it.
2. If the part overheats, it means that the radiator has failed.
3. Overheating may cause the filament to break. To diagnose this problem, a special tester is required. In working condition, the thread shows a voltage of 5-7 Ohms. If it fails, the voltage drops to 2-3 ohms, if a break occurs, the device will show infinity.
4. Filter breakage is checked by a tester. If the part is in good condition, the device will show infinity, in case of a breakdown, you will see numerical resistance.

There are breakdowns that you cannot diagnose yourself. To do this, you must have not only knowledge, but also special equipment.

How to check the magnetron

The cost of replacing this part is so high that many people prefer to buy a new microwave, rather than repair the old one. Before you send a spoiled device in the trash, you need to make sure that the problem is in this expensive part. To do this, it is necessary to do certain manipulations:

1. The first thing you need to do to check the magnetron is to turn off the power in the microwave by turning the device off.
2. Inspect the inside walls of the microwave.In the event of a malfunction of the magnetron, you will find melted areas, darkened or burnt walls.
3. If there are no external signs, it is necessary to make a diagnosis with a tester.
4. Check if the fuse is defective.

The main signs that a magnetron has failed are strange sounds, smoke or sparks from the furnace. After such external manifestations, the microwave stops working correctly.

Install a new part

If you have an expensive model of the microwave, it is still reasonable to replace the broken part, and not to buy a new stove. Of course, it is best to contact the service center, but you can try to make a replacement yourself.

When buying a new magnetron, pay attention to the fact that the power coincides, that the contacts and mounting holes correspond. Otherwise, you risk acquiring useless parts.

Connect a new magnetron is not difficult, since it has only two main contacts. Detailed information on all designations is in the diagram, the main thing is to check the compliance of the following parts of the device:

1. The antenna must match the diameter of the factory.
2. Watch for a snug fit of the new device to the waveguide.
3. The length of the faulty antenna must match the new one.

Best of all, unscrew the old part and go to the service with it, so that the experts will find the right one for you.

Conclusion

Microwave - an indispensable assistant in any kitchen. With it, you can quickly heat up the food and cook a delicious dish. The breakdown of this technical miracle causes some stupor and paralyzes the usual rhythm of life. Many of existing microwave faults You can decide for yourself, but if the magnetron is out of order, contact a specialist. Making repairs yourself is dangerous not only for the equipment, but also for you.