Hi. I've had it 6 years. The top rack especially doesn't clean well. I'm thinking I need a Part Number AP4362441 MFG Part Number W10192799-pump filter. Your thoughts?
Answer Jim, Unless you can see that the filter screens and bottom tabs are clogged with debris or sediment, that's probably not the issue. When it comes to poor cleaning on the top rack, your first check needs to be to make sure the dishwasher is filling properly. remove the lower rack, and start a wash cycle, let the machine run a few minutes(3-5) unlatch the door, and wait a few seconds then open the door and check if the water level in the bottom of the tub is in contact with, or partially covering the heater element, if not, there is not enough water in the machine to properly pressurize the pump and reach the top spray arm to wash properly. You will also need to check the docking port 6-917647 on the manifold and make sure the rubber flappers are in the proper position and swivel properly. If there is not enough water in the tub, you will want to replace the fill valve 99002628 or 6-920534 depending on serial number.
I have the same issue as Mike Dishwasher has a heavy build up of material in cups. We have extremely hard wader in our home. I removed all parts to clean them and there was massive build up of detergent and water minerals. The filter seemed to be dirty on the inside but I could not open to clean completely. The dishwasher worked well for 3 months but is back to same issue. At this point I am considering buying a new filter and adding a water filter to the water line that leads to the dishwasher. Before I do so any way to fully clean the filter? Again all the micro filter sections are clearly blocked from the inside.
Answer Arthur, Your best option is to replace the filter assembly W10192799 , you'll only damage it trying to clean it. The filter material is pretty fragile. The remainder of the pump components can be cleaned with a solution of hot water, and a product such as "lime Away" or "CLR". Allow the solution to soak for 20 to 30 minutes, then wipe it out with a rag. Repeat again if necessary. Installing a filter will be of some benefit, but a softener system would be better, and make sure the water temperature in the tub is at least 120 dgrs.F. on the first fill of a cycle. The hotter the water the better the detergent chemicals break down and dissolve.