The appliance doesn't operate at all.

It hasn't been correctly plugged.

Plug it correctly.

Problem at the plugging.

Check the plugging and the function of the socket.

Electricity cut or bad fusion. .

Check which one.

The cooking function hasn't been selected.

Select the desireful cooking function. .

Sparklings inside the oven.

The oven operated empty.

Operating the oven empty is completely wrong. It is forbrdden to operate the microwave empty. If you want to perform some test, place at least a glars of water.