Dishwasher - Lower Spray Arm Not Spinning
To get the correct wash performance from your dishwasher, please make sure the spray arms in the dishwasher can rotate freely. This will allow an even distribution of water circulating throughout the dishwasher interior so that each dish will be cleaned. Two indicators that the dishwasher may have a blocked spray arm are a constant tapping noise when running the dishwasher or dishes in a section of the dishwasher are not getting properly washed.
To ensure the spray arms can rotate freely, spin the spray arms with your hand and make sure they can make a full revolution. Common items that can block the spray arm are:
Utensils (wooden spoon, spatulas, etc.)
Large pots and pans
Items hanging down below the bottom of the rack/basket
If the dishwasher's lower or middle spray arm is not spinning, the dishwasher may not be filling with the proper amount of water. For more information: Dishwasher - Not Enough Water
If these suggestions do not help, service may be needed. For service, please schedule an appointment with GE Appliances Factory Service.