Identify from the model
Use the full reference or manual rather than guessing from black glass. Describe pan recognition symbols and visible heating behaviour separately.
Keep explanations relevant
An engineer can then consider the correct controls and heating arrangement. Advice for a radiant element should not be applied to an induction unit, and appearance alone cannot select a replacement part.
A useful distinction
Cookware that worked on a radiant surface may not behave the same on induction. A recent pan change is therefore relevant history, while a familiar compatible pan failing suddenly may support a different enquiry.