Internal materials and the maintenance sequence can differ from those of a kettle or ordinary toilet. General scale-removal ability does not establish compatibility.
What the observation means
The product concentration and amount matter too. A cleaner bearing a familiar brand name may serve a different application.
A useful next step
Check the unit and product instructions together before use. Keep the label for reference. If an unsuitable product was introduced, stop and seek advice rather than attempting another chemical to reverse it. Do not assume dilution removes every compatibility concern.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.