Smeg DI613ATP Dishwasher Cleans Some Dishes Poorly
For inconsistent cleaning on a Smeg DI613ATP, first compare the dirty areas with the loading pattern, then inspect the spray arms and filters with the dishwasher disconnected from power. Smeg's opened DI613-family user manual says to use the correct detergent amount, regenerating salt, a program suited to the load and soil level, clean and correctly seated filters, clear spray-arm nozzles, and no object blocking arm rotation.
SMEG · Dishwasher · Appliance Repair