To avoid personal injury or death, disconnect your appliance from its power source before you start any troubleshooting or repair work. Use caution when working inside any appliance.
If you have problems with your dishes still being wet when at the end of the dry cycle, check to see if the rinse aid dispenser needs filling, check to see how well the dishes are loaded, and make sure a large item doesn't block smaller items.
Did you use the proper amount of detergent? Too little or too much detergent can have an affect on how well dishes dry. Have you selected the heated drying option? A rinse aid can help your dishes to dry better also. Is the rinse aid dispenser empty?
The next things to check are the filters, drain valve, drying fan, heating element, and the thermostat. Sometimes a clogged filter will prevent all the water from being able to exit the unit. Clean or replace clogged filters. A faulty drain valve that leaves too much water in the cabinet can be to blame. Is there too much standing water left in the unit after the dry cycle is complete? Check for blockages at this valve.
Some dishwashers have a fan that circulates the cabinet air to help dry the dishes. If the fan is not working properly, you need to replace it. At the bottom of the dishwasher is a heating element that warms the air in the dishwasher. The increased temperature speeds up the evaporation process and decreases the drying time. Visually inspect the element and look for any burned or broken areas on it, and if it's burned out or if you can't measure continuity with it removed, it will need to be replaced.
There is also a thermostat that measures the water temperature and drying temperature. If the thermostat is faulty, the cycles may not complete properly. If it's faulty, you need to replace it. You may want to unload the dishes in the bottom rack first so that any water left pooled on dishes in the top rack won't spill onto the bottom rack's dishes.
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