Only under the appliance and cover instructions, with the hob safely off and sufficiently cool. A cover must not turn the cooking surface into an unsafe storage area.
What the observation means
Residual heat can damage materials after the controls are Off. An accidental selection can also heat items left beneath or on the cover.
A useful next step
Use only a compatible product and keep its limitations clear to everyone in the household. Do not cover a damaged or unpredictable hob as a substitute for repair. Remove unrelated objects before cooking and never rely solely on a lock to guarantee a cold surface.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.