Water pressure, filter condition, spray arms, and the heating system all affect washing quality.

If the dishes come out dirty, the detergent is not always the only reason. Low water pressure, clogged spray arms, and residue buildup in the filter directly reduce cleaning performance.

If the appliance is also not heating the water, the heater and sensor parts should be checked separately. With an accurate diagnosis, the exact fault can be identified and the dishwasher’s cleaning quality can be restored.