It can serve a different wastewater arrangement with its own controls, storage and access requirements. A domestic-looking setting does not make the equipment interchangeable.
What the observation means
Alarms, multiple pumps or a larger receiving volume may be involved, depending on the model. Owner actions must follow its specific instructions.
A useful next step
List the equipment and connected areas accurately when seeking assistance. Do not open a tank or control panel. If drainage is failing, stop contributing wastewater and obtain the appropriate specialist assessment rather than treating it as an ordinary toilet blockage.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.