Maintenance Tips for Your Maytag Dishwasher Obstructed spray arms will affect your dishwasher’s ability to clean. If you haven’t cleaned the spray arms in your appliance since you bought it or it’s just been a really long time, take the spray arms out of your dishwasher and soak them in hot soapy water.Click to see full answer. Also know, how does a dishwasher spray arm work? Pumping and Spraying A pump will take the heated water from the basin of the dishwasher and into the spray arms. Here the water is forced through small holes in the spray arms at high pressure, spraying warm water onto the dishes. This food is washed into a filter so it won’t get reused and pumped into a spray arm.Secondly, how do I fix my dishwasher drain? Q: I opened the dishwasher door to find the bottom of the unit filled with dingy water! A: You did the right thing running your unit a second time. Run your garbage disposal. Clean your sink’s air gap. Remove standing water. Clear up detergent mishaps. De-gunk the drain basket. Check the drain hose for kinks. Subsequently, one may also ask, why does my Maytag dishwasher not clean well? Maytag Dishwasher not cleaning. The water inlet valve opens to allow water to enter the dishwasher. If the valve is clogged or defective, the dishwasher won’t get enough water to clean dishes properly. Do not attempt to clean the water inlet valve—cleaning the valve could make it more likely to fail.How do I clean my Maytag dishwasher with vinegar?Put 2 cups (500 mL) white vinegar in a glass or dishwasher-safe measuring cup on the bottom rack. Run the dishwasher through a complete washing cycle using an air-dry or an energy-saving dry option. Do not use detergent. Vinegar will mix with the wash water.