After I ran my dishwasher I opened it up and found a blue gasket type ring on the top rack. It was shaped like an oval. I had a repairman look at it and he couldn't find where it came from, could you please help me? Thanking you in advance for your help. DJ
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It is likely that sufficient water is not coming from the top arm. These dishwashers oscillate the water flow between top and bottoms sprays alternatively. This ensures water is pumped with adequate force. It is possible this mechanism is not working correctly. The device called check ball item 58 in this diagram actually does this function. The ball might be out of shape or not sitting properly causing incorrect wash water movement.
It would help if you provided the make and model of the dishwasher.
Most likely cause of not getting enough water pressure to top rack is the water diverter may be faulty.
Depending on the model - it is a small ball floating in a vertical channel which alternately opens and closes the bottom and top water inlets to the spray arms. Check part at Repair Clinic after selecting make & model of your dishwasher.
do you have a sprayer on top portion of dishwasher? if you do make sure it turns when dishwasher is running. check to see if holes in sprayer are open and not colgged up. you can clen it by pacing it in vinegar.
Some dishwashers have a telescoping nozzle in the center on the bottom. If this is blocked by a large pot in the middle of the bottom tray, the nozzle will only extend up into the pot, and not be able to spray the entire top rack.
Also, some models have an arm mounted in the top. Check and see if it can spin freely, and if it's nozzles are clogged.
I had the same problem and found two things which were causing it -The O-ring was missing off of the tube connection on the back of the dryer that inserts into the sprayer tube. I found a size 11 O-Ring at Home Depot and it worked -The openings on the underside of the spray arm are what propels the sprayer to spin. I found small pieces of plastic debris in the openings and cleaned them out.
I have the same model dishwasher with same problem. The gasket first came loose just after my warranty expired. The stainless steel and heat don't make for a good combination with the glue that holds the gasket in. My husband works with caulk and the like. He found a clear gel of some sort to get everything to adhere. It's had to be reapplied. I just make a habit of making sure the gasket is seated in its track and watching if dishes on top rack catch the gasket when I pull rack out.
See www.repairclinic.com, item #1065754, White silicone adhesive, specially formulated for use in the dishwasher to adhere tine tips & door gaskets. It's an accessory for this dishwasher. I don't know if Sears Parts Direct offers it. Sometimes their price is lower.