Wet dishes at the end of a cycle do not always mean the dishwasher has failed. Plastic that does not retain heat, low rinse aid, loading that traps water, an air-dry cycle, or a real heating-system problem can all produce similar results.
Check whether the problem is mostly plastic
Ceramic, glass, and metal hold more heat and evaporate water more effectively. Plastic containers may remain wet even when drying works; angle them so water does not pool on bases and rims.
Check rinse aid and the selected drying option
Rinse aid helps water sheet off instead of forming droplets. Check the dispenser and setting according to the manufacturer, and confirm that an energy-saving or air-dry option was not selected when heated drying was expected.
Load items so they can drain
Cups, bowls, and concave pieces need an angle and spacing that lets water drain. Items touching or blocking a spray arm may also wash poorly; secure lightweight pieces so they do not flip over during the cycle.
A consistent lack of heat can indicate a fault
If glass and metal also come out cold and wet, the wash water does not seem to heat, or cycle behavior changes significantly, a heater, sensor, or control fault may be involved. Do not open energized panels to test it.
Sources
- American Cleaning Institute — Cleaning Tips — General household-cleaning practices and responsible product use.