Use ordinary evidence
A model label or matching manual is preferable to guessing. Describe whether there is an outside vent, removable water container or existing drain hose if visible.
Apply the distinction
A vent complaint belongs to a different route from a tank warning. We do not offer sealed refrigerant-circuit work on heat-pump appliances, so suitable assessment must be confirmed for the particular fault.
A useful distinction
A water container does not by itself identify every internal technology, and a drain hose may replace manual emptying on some models. The model reference is the reliable starting point for interpreting the visible arrangement.