The main reasons for keyboard failure:

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The same thing happens if there are metallized elements, ornaments, decorations, spraying. It damages the main mechanism, causes the release of accumulated energy and sparks.

The fact that the oven produces sparks is incredibly dangerous, so as soon as you notice such a malfunction, you should stop working, turn it off from the network and remove the products from the chamber.

If you have not used metalized cookware, the problem may be in the protective mica plate. Its main task is to pass microwaves from the magnetron, while protecting it from food. In 90% of cases, sparking occurs precisely because the plate deteriorates and microwaves are released.

Replacing or repairing the mica plate will not cost much, regardless of the brand. Panasonic, Whirlpool, Samsung and LG will cost approximately the same. In the future, try to take care of the inner surface of the oven, do not allow grease to get on this place. Otherwise, the problem will arise again.

No response to button presses
The pushbutton panel can be designed as a solid plate or belgium telegram data individual buttons. The difference is in the number of contacts: wires are connected to each element separately or one to the entire panel. In modern models, it looks like this: the touch panel is made in the form of a multilayer film, and information about touches is read from it.

If the buttons don't work, but the display is on, the problem is most likely in loose contacts. The repair consists of the technician replacing the loose wires.

A common problem is a burnt-out board. In this case, the touch panel does not work at all. You have to buy a new one and replace it. The same thing has to be done when contact repair does not bring the desired result.


Breakage of conductive paths.
Contacts sticking.
Lost contact.
Troubleshooting
If you find that your microwave is not working, do not rush to throw it away or repair it yourself.