Dishwasher leaving residue

My dishwasher is leaving residue and is just not cleaning very well. I just want to where the traps, drains, or anything else I need to clean or due to this thing are. I would like to find a service manual for it as well.

First check the temperature of the incomng water. It shoud be at least 120 degrees F. Also, check to make sure you’re getting enough water to fill to just below the spray arm. If you need to, let the hot water run long enough to reach the maximum temperature at the sink before starting the dishwasher.

Try running a cycle, without dishes, using Dishwasher magic.AP5691606

Let us know what you find.