To troubleshoot problems with a GE 4900 dishwasher, inspect the water inlet valve for clogs, and check that the center, lower and upper wash arms are hooked properly to the water supply nozzle. The circulation pump also needs to be checked to make sure it has not burned out.Continue Reading
The drain hoses can become clogged with hard food particles, so it is important to remove the drain hose from the sink drain and the dishwasher and clean it out. Obstructions from a garbage disposal system can also cause blockages that may disable the dishwasher to drain.
If the water inlet valve is clogged or damaged, it needs to be cleaned or replaced so the dishwasher components receive enough hot water to run through a cleaning cycle. If the center, upper or lower arms are not rotating or hooked correctly to the water supply nozzle, the top and lower racks may not receive enough water to clean and rinse the dishes. Make sure that the holes in the wash arms are not clogged or blocked by food particles.
A noise that occurs after the dishwasher has filled is typically an indication that the circulation pump is malfunctioning and needs to be replaced.Learn more about Dishwashers