Use existing manuals, receipts or installation records first. Do not lift a fitted hob or remove electrical covers merely to read the label.
What the observation means
The underside may be close to live connections, sharp edges or a built-in oven. An installation diagram can help locate the identifier without authorising dismantling.
A useful next step
Provide the details safely available and explain the label is inaccessible. A front photograph can support discussion but does not prove exact part compatibility. The service team can plan suitable access if identification remains uncertain.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.