Dishes are not getting clean; food remains stuck on after a full cycle.

Safety first: Turn off power before removing internal components like spray arms if you will be using tools.

Step-by-step checks:

• Pre-rinse habits: Scrape heavy food but do not fully rinse; modern detergents need some soil to activate.
• Clean filters: Remove and clean filters weekly to maintain water flow.
• Spray arm cleaning: Remove upper and lower spray arms. Rinse under hot water and use a toothpick to clear blocked jets.
• Check water temperature: Run hot water at the sink before starting the dishwasher. Ensure it reaches at least 120°F (49°C).
• Detergent and rinse aid: Use high-quality dishwasher detergent and ensure the rinse aid dispenser is filled.
• Circulation check: If cleaning remains poor, the circulation pump may be weak and require replacement.

Warning: Avoid overloading racks; this is a common cause of poor cleaning.