Why Doesn't My Microwave Work? Part 2

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The second fuse F2 is located after the high-voltage transformer (transformer) in the magnetron circuit and is called high-voltage. It is "hidden" in a plastic case in the form of a tube and is located next to the transformer. This fuse fails due to the failure of the high-voltage diode or capacitor. It is better to replace the fuse with a new factory-made one, since it is calibrated for the required operating current. Well, it is imperative to replace the part that caused the fuse to burn out. Below, watch a video on how, in extreme cases, you can repair the high-voltage fuse of the microwave oven yourself:

The previous article on microwave oven malfunctions described typical simple microwave oven malfunctions and methods for fixing them, which are available to almost all users without special knowledge of radio electronics.

But often the microwave does not heat due to serious breakdowns in the electronic components and units of the kitchen unit. This material describes methods for finding the reasons why the microwave does not work or belgium telegram data heats poorly, as well as the possibility of self-repair if you have radio engineering knowledge, skills and a minimum measuring and element base.

Microwave oven device
Conventionally, the internal structure of a microwave oven can be divided into several parts:

Control unit (CU). Used to select modes, program the timer, set options, turn oven functions on and off, and control various systems. External appearance and internal structure of the microwave oven control unit
System for generating ultra-high-frequency radio waves (power supply circuit and booster voltage of a microwave oven magnetron that directly emits microwaves).
A device for rotating a plate with heated food.
Microwave oven cooling system.
Checking the resistance of the fan motor windings

Breakdowns in the last two modules of the microwave are easily identified even without disassembling the case. These malfunctions (especially ventilation failure) can trigger the microwave oven protection algorithm, which is why it does not work properly.