When a residential dishwasher leaves your dishes dirty or covered in food film after a cycle finishes, the malfunction is typically caused by a clogged cylindrical sump filter, blocked spray arm nozzles, low incoming water temperature, or improper dish loading. If grease and food pulp clog the micro-mesh filter basket, dirty water recirculates through the tub. You can troubleshoot cleaning performance easily by inspecting the filter and spray arms. You can verify that your corrective action is successful when cleaning out the filter basket under warm running water, clearing clogged spray arm holes with a toothpick, and running a test cycle results in spotless, brilliantly clean dishes.
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