Surrounding finishes may restrict ventilation or removal, and the service team needs to know before work is planned. The correct clearances are model specific.
What the observation means
Breaking tiles or pulling against them can damage the appliance and concealed connections. A previous installation that appears neat is not proof of suitable service access.
A useful next step
Describe the fixed surround and provide any installation records. Keep the appliance fault separate from possible building work needed for access. Do not remove casing panels or cut a seal yourself simply to free the cooker before the engineer arrives.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.