A few tips on getting your dishes cleaner out of your dishwasher:
1. Make sure the water heater is set between 120-125 degrees
2. Purge your water in the sink before running the dishwasher. Make sure the water is hot so the dishwasher water will be hot from the beginning of the wash cycle. This is important since the hot water helps break down any stuck on particles, it also prevents clogs.
3. Every so often wash your dishwasher. Use 1 cup of white vinegar and run an empty cycle. This will get rid of soap and calcium build-up.