My dishwasher is leaving a residue on the inside and outside of all dishes, top and bottom rack. It sounds like it is spraying plenty of water, the manifold that channels the water to the spray arms is clear, the spray arms are not plugged, and the impeller is in good shape. I have not removed the main pump and motor assembly. The filter screen seems discolored but I don't think it is plugged. I have added extra water, just in case it was low and, yet, lightly stuck on food does not come off and all dishes feel coated with a residue. One other observation, half way up the manifold, there is an open port on the left side. Is it normal?
The port on the side of the manifold is there as designed by the manufacturer. You will want to pull the pump apart to make sure that there is nothing clogged in the pump and make sure that the filter is clean. You may also need to run a clean cycle in the dishwasher to make sure that there is no residual soap residue. Also check your water temp when the tub fills to make sure that the temperature is at least 120 degrees. If not then and the water does not reach proper temp then this could cause the same issue.
Set controls for wash, panel lights up, but no water starts to flow?
Answer Hello Charlie. Check and make sure the float is not stuck in the up position on the unit. If the float is good, and there is no water coming in, test for power to the water valve. If there is power there and no water coming in, you will need to replace the water valve. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html