Pads cannot diagnose a new mechanical noise or a machine that has begun moving abnormally. They may also be unsuitable for the model or fitted arrangement.
Understanding this situation
A support accessory changes how the appliance meets the floor, while a fault can originate elsewhere. Covering the symptom with a mat may make it harder to recognise continued movement or an underlying problem.
A useful next step
Check the manufacturer's positioning guidance and discuss a new significant vibration before adding accessories. Do not use makeshift supports or weights on top of the appliance. Explain whether the symptom began after a move, load change or years of stable operation.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.