An odour present in an empty appliance is a different observation from a fragrance or stain carried in by one garment. Review the model's cleaning routine and recent use.
Understanding this situation
Deposits, retained dampness and unsuitable product use can contribute to odours, but smell is not a precise diagnosis. A burning or electrical smell belongs in the stop-use category rather than ordinary cleaning advice.
A useful next step
Follow the approved maintenance process with the right product and an empty drum where specified. Do not mix chemicals. If the odour persists or comes with leakage, overheating or warnings, report the complete pattern instead of increasing cleaner strength.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.