I have a Whilrlpool ADP 2315 with the 6 flashing lights error code.
The hose is NOT kinked.
The water tap is NOT closed
Water pressure is fine.
Filters are clean.
Drain hose is not kinked.
No foam inside.
It drains perfectly well, so I am assuming there is nothing wrong with the pump. I have checked behind the bottom panel where the pump is and the area is dry.