The microwave oven – the kitchen appliances loved by many hostesses for the multifunctionality. In it it is possible not only to warm food, but also to cook soups, second courses, to bake hot sandwiches, to defreeze meat, fish, chicken. And if in options there is also multi-cook or the grill, the prices to such assistant is not present at all. For this reason at emergence of problems with inclusion or detection of breakage in many there is question - whether it is possible to repair the microwave the hands and as to make it in the absence of experience.
Before understanding how to repair the microwave in house conditions without the master's call, it is worth understanding of what devices and elements the household appliance by what principle it works consists.
Device of the microwave oven
Before analysis of such difficult technique as the microwave, it is worth studying the device of rectangular box of white or silvery color simple by sight. And before sorting favourite kitchen ""assistant"", it is recommended to study all papers, to find the warranty card, the instruction. Perhaps, it is simpler to call the expert or to hand over the equipment in shop if from the date of purchase there has not passed 1 year. If there is nothing to lose, and hands itch to begin dismantling on kitchen table, the following short list of elements and parts of the microwave oven will help.
What enters the household appliance:
- the camera with glass plate;
- door with sealant;
- power supply cord for connection to the home socket;
- magnetron;
- high-voltage safety lock;
- the transformer for energy transformation;
- rectifier;
- condenser;
Also in the microwave are available:
- fan engine;
- lamps of illumination and grill at many models;
- pallet engine.
Principle of operation of the device
It is necessary to be engaged in repair of microwaves to those who though understands the equipment a little, understand operation principle of its work. It is necessary to know what internal parts and elements are responsible for inclusion, rotation of pallet, power generation and warming up, to be able to find them at the minimum dismantling. Otherwise will leave so that to repair the equipment independently it will not turn out, and it is necessary to call nevertheless the master or to go to repair shop.
Here short fact-finding course for ""teapots"" as the microwave works.
- After connection of cord of power supply of the microwave on the first winding of the transformer tension 220B arrives.
- Then tension is transferred to the second winding, it is automatic.
- The safe system of warming up of food joins.
- The condenser and parralelno the connected diode allows quickly, at the accelerated speeds, to warm camera contents, at the expense of the doubled tension.
- The heat up time and the sensor of temperature condition is regulated by means of the timer.
- The relay which is built in the working mechanism does not allow to jump to differences of tension at failures in network or sharp opening of door.
Reasons of malfunctions and ways of the solution of problems
Before trying to repair independently the microwave oven, it is necessary to define symptoms and the causes of breakage. It is the simplest to make it, being guided by the table given below. Having checked certain elements, it will be clear what part is faulty that should be replaced when carrying out repair.
If there are interruptions in work, the oven is quickly switched-off or, on the contrary, is not switched off, it is necessary to pay attention to the following symptoms.
If light in the microwave do not burn, and she does not work, it is necessary to check the following reasons.
In the absence of microwave it is necessary to check resistance on the following algorithm.
It is necessary to remember that there are 3 basic reasons of breakage of kitchen appliances:
- Burn-out of safety locks.
- Burn-out of mica plate.
- Fault of the magnetron.
If at inclusion from the microwave the smoke hardly visible or black has gone, sparks fell down or there was fire, it is difficult to repair it not only, but also it is dangerous. It is necessary to pull out cord at once, and it is better - to deenergize kitchen. In this case not to do without master, the hands to repair nothing here.