Laundry entering drying with more retained water presents a different task from a normally spun compatible load. That can affect the combined result and duration.
Understanding this situation
Check whether the wash completed its permitted final spin and whether a low-spin option was deliberately selected. A genuine loss of spin performance should not be treated merely as a request for extra drying time.
A useful next step
Respect the garment's spin and drying limits. If the washer-dryer has stopped removing water normally, report that earlier stage. Do not use repeated extended heat as a workaround for a continuing wash or drain fault.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.