GE dishwasher Quiet Pro 3 middle washing arm

take it off and see if the small holes in it are blocked as this will stop it turning, if not then could be a wash motor or the tiny synchro motor that diverts water to different spray arms

Check your upper wash arm.... check the holes, especially the ones at the end of the arm. Are they possibly clogged with debris or hard water? This is the usual cause of dishes on the top rack not getting clean. The holes at the end of the wash arm are angled to eject the water at an angle to use the reaction to push the wash arm around. If those holes are clogged, then the arm won't rotate, and only those few dishes or glasses right under the arm will get clean, and the remaining 80% of the dishes on the upper rack won't get clean!

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Make sure the center loading is not obstructing the water jet to the top shelf. Top shelf is only for glasses and saucers , use Jet-Dry .Pre rinse and clean bottom pan strainer from dirt debris.

Check if the holes are blocke dwith dirt the arms spin by newtons law that every action has a reaction (like a rocket) if the holes are blocked it wont spin as there is no force.

It sounds like you don't have enough water. Your water inlet valve may be not letting in enough water or the plastic pump inlet screen located on the bottom of your dishwasher had something blocking it.

1. Check to see if there is something blocking the plastic screen on the bottom of your dishwasher.
2. When your dishwasher is in the final cycle add a pot of hot water to the dishwasher and see if your dishes come out cleaner.

If the dishes come out cleaner you may need a new water inlet valve.

I just took mine apart (bottom turntable, screen, etc.) and I was disgusted by the grime and gum that was clogging everything. I think it was keeping all the water a gritty white, which constantly left residue. I am currently running a load... hope that the "clean" dishwasher actually washes my dishes now!

The broken bottom arm is probably preventing any water / water under pressure to get to the upper arm.
After you replace the lower arm, you should have much better cleaning in the top shelf.
While you are in there replacing the lower arm, recommend you remove the filter under it and clean the filter and any debris you find. Be careful of broken glass!
Good Luck!

Peace,
Cut off the power at the breaker for 5 minutes and then turn it on and see if the system resets!
How old is the machine?

Other wise you need hands on service! And a new machine will pay for itself in only a few years!

Bless You!

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.

Now the middle arm spins like it should.

sound like a low water level and or pressure issue. Start machine on normal cycle after filling open door and ck water level. should be up toJUST below heater assy.. assumiong htats good set hte wash arms to a set positon so you can watch for rotation. close the door adn after a few secs open rapidly and look for middle arm to be spinning, even the top 3rd row arm if present, should be spinning spinning . if not its possible that the motor/sumo assy is blocked w/ foriegn debris. remove the lower spray arm (hold the nut and spin arm)then remove 4 or 5 torx 15 screws. probly pretty glogged under there. if not id look into replacing motor sump assy/seals worn and not throwing water where it should go