I have purchase Samsung Diswasher Model DW80K7050UG/AA about 4-5 months ago but used it only 4-5 times only. Each time we noticed that disches are not cleaned, even small/light food mark, which comes out just by scratching gently by hand or sponge, remains as it is after washing cycle. We have tried 3 different dishwashing soaps but not much improvement. Looking for some suggestions/idea what could be wrong.
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