The microwave does not heat ... There is light, the plate is spinning, the fan is buzzing, but food or water does not heat up. When such a simple, but not very cheap and necessary thing, like a microwave, is easier to repair than to throw out, all the skills of home repair of household appliances are used. All that is needed for a positive result is elementary knowledge of the basic structure of electrical engineering, electronics and, in extreme cases, the skills of finding information on the Internet.
Most often, the topic of repairing microwaves does not cause much interest among many owners. Like, there are no spare parts for sale, workshops “break” prices for restoration and so on. In fact, the operation of the microwave oven can be restored, and it will last for quite some time, moreover, imported parts are successfully replaced. Cheap and cheerful.
So, let's begin. The most “sore” question: “The microwave works, but does not heat. What to do?". Everyone knows that in order to understand the problem, first of all, you need to disassemble the broken equipment. And, if there are no visible defects, check all contacts. We de-energize the stove, remove the lid (no difficulties should arise). Then you have to do the following: unfasten all the terminals, process the contacts with fine sandpaper and assemble in the reverse order. Particular attention should be paid to power contacts in a transparent braid. Check for signs of burning.
Checked - collected, but the microwave does not heat? It is necessary to measure the voltage in the network. It is worth clarifying that most microwave ovens at a voltage of even 205 V will not heat anything. Check outlets and extension cords. Is everything okay? Then we take it apart again. We need to measure the voltage at the input of the mains transformer. We connect the tester, turn on the microwave oven and start up the operating mode, that is, in microwave heating. Now there are fewer options why the microwave does not heat.
There is another simple option for a malfunction, in which case the microwave works, but does not heat. This is a fuse. There are usually two of them in the microwave system, and the failure of any of them leads to its inoperability. The solution to the issue is trite. We take a sample (different fuses can be used on different models) and we buy in the nearest radio store exactly the same. The cost is about 30 rubles. But many still prefer the installation of bugs. Be careful. In no case do we recommend you such a "replacement".
Firstly, such "refinements" of the design are unsafe. The fire hazard is extremely high, and you risk losing not only the microwave, but also most of the property. Secondly, even if you picked up a wire of the corresponding cross section, which more or less meets the safety requirements, is it really 30 rubles - is such a high price for a new fuse? Buy, deliver and be absolutely calm. The only question remains the reason for the breakdown of this part. And even if you figured out why the microwave does not heat up - this is not a fact of troubleshooting. It is possible that the fuse has become, as they say, a symptom. Check it is not difficult. If everything works fine, but after a day or two the microwave does not warm again, you will have to go to the service center or to the store for a new “heater”.
In addition to non-essential reasons, of course, it may turn out that the microwave does not heat up due to wear or poor-quality components. If you are faced with a second reason, and the microwave oven was purchased recently, bring it back to the store. Remember that you can "open" the equipment only after the expiration of the warranty period. Otherwise, the warranty is void.
Keep in mind that daring experiments can be risky. If you do not feel confident in your knowledge and abilities, leave the repair of the microwave to professionals.