That depends on the specific accessory and cooker. Some handles are detachable for a reason; others have their own heat and position restrictions.
What the observation means
A replacement handle that appears to fit may not lock securely onto the pan. Leaving a detachable part near intense heat can create a handling hazard. The accessory instructions matter as well as the appliance manual.
A useful next step
Confirm the approved arrangement before grilling. Check secure engagement only when cool and unloaded. If the handle is loose or its retaining feature is damaged, stop using it rather than lifting a hot, full pan to see whether it holds.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.