Vacuum cleaner · Focused observation
The panel is dark, or the buttons do not respond
These are separate observations. Note which lights or displays remain visible and any interruption you already know about. Leave electrical housings shut; an enquiry does not require live testing.
We agree suitable work and arrangements for your actual appliance.

How this relates to your vacuum cleaner
Retain the model and describe which function changed, including charging or a visible warning where relevant. Follow only the manufacturer’s normal user-care instructions. Small-appliance work needs individual acceptance before arranging anything.
An observation is a useful starting point
Describe what you saw during ordinary use, then retain the complete model. An observation can help frame an assessment but does not establish which part is faulty.
There is no need to recreate a risk
Do not repeat a cycle to recreate smoke, tripping, burning, unsafe movement or leakage near electrical parts. Keep connected equipment in place and do not remove covers.
A useful starting point
Find your product and your place.
Select the actual label, appliance and service locality to open a focused guide.