Load a dishwasher so the water can reach the dishes
A full machine and a crowded machine are not the same thing. A few checks before starting help you avoid blocking the work the wash system is designed to do.

Start with what belongs in this machine
Check cookware and container labels before loading. A dishwasher-safe mark on an item does not mean every rack, cycle or heat setting suits it. Whirlpool’s general guide puts dishwasher-safe plastics in the upper rack, but the item’s instructions and your machine’s layout still matter.
Leave a route for the water
Scrape off leftover food. Space items so dirty surfaces face the spray rather than being covered by another bowl or plate. Avoid nesting spoons and bowls into a solid stack. Put larger items where the loading diagram allows, without obstructing a spray arm or the detergent dispenser.
Before starting, check that no handle projects into the spray-arm path. Do not reach into a running machine or force an arm. Sharp items need the arrangement specified by your machine and utensil instructions; load and unload carefully.
Use dishwasher detergent, not sink dish soap
Whirlpool’s guide specifies detergent formulated for automatic dishwashers. Ordinary handwashing liquid is not a substitute. Use the product quantity and dispenser directions in the model manual; avoid improvising a recipe because a pack looks too large or small.
Choose the cycle for the load
A quick cycle is not automatically the lowest-energy choice. Cycle duration alone cannot tell you water use, heat or drying energy. Read the cycle table and use the mode intended for the soil level. ENERGY STAR recommends scraping rather than unnecessary pre-rinsing and running suitable full loads.
When clean dishes still look wrong
Note whether the issue is food residue, a film, water droplets or a changed smell. Those observations are more useful than naming a failed pump. Check the manual’s routine-care guidance and the filter-care checklist if it applies. Leaks, burning smells or damaged components need qualified help.
Sources and limits
This is an editorial summary of the guidance below, not a report of hands-on testing. Your exact model’s manual takes precedence for care procedures.