Is it giving you any fault indications? Check the manual and see what to expect.
Check the drain pump and drain is clear. Again, the manual should show you how.
I did a quick Guggle search and nothing relating to poor draining came up BUT that model seems to have a history of problems with the lower spray arm, so it might be worth having a quick look at a few if the sites discussing that, as it might be related.
Edhndh
January 2022
