I have a Whirlpool model WDT970SAHZ0 dishwasher that is about 1.5 years old. I have a lot of problems with all of the plastic parts but the worst is that the top rinsing arm keeps falling off.

SOURCE: I have a 5 year

Lift off the rotating arm,and soak it in lime away, or crc. It's probaly has lime deposits,keeping the pressure down

SOURCE: model gu2700xtss1, upper rack not clean at all,

I am here for the exact same reason. Mine is less than 3 months old. This may be a recall item. I bought, and paid more for a kitchen aide for the name and reputation.....Where can I find the model number?

SOURCE: top spinner arm of dishwasher keeps falling off

did you solve this. we have the same problem. the piece that the arm is connected to is slightly broken. I don't want to pay for a service call. let me know what you did.

SOURCE: Cannot unscrew cap on rinse aid compartment in door of Whirlpool Gold Quiet Partner III

the cap doesn't come off, you just have to open the door all the way. then, when you pour the rinse aid into the dial area, it will get sucked into the dispenser. but if the door isn't open all the way it won't go anywhere and will overflow on you.

SOURCE: maytag model dwu9200aax

The top spinner part can simply be pulled off by grasping it near its hub and pulling downward. Push it back on and push in the locking clip in the center. The bottom spinner can be removed, First unscrew the center column. Hold the spinner with one hand, turn the base of the center column counter clockwise. Then lift column off. Then the spinner should lift off of the keyed white plastic base. Underneath it, on the neck off of which you lifted it, are two plastic washers that form a seal (supposedly). Good to clean these to make spinner rotate freely, but be careful not to break them taking them off. If you want to go farther in, there is the point of a strange shaped plastic nut sticking up into the base of the column. If you remove this, and the 6 torx screws holding the strainer cap, you can get it all out to clean it up (I had bits of plastic bag in the slots of a 4-armed thing that apparently sprays the filter screen), and scrub the washer in the bottom. Remarkably yucky down there in a 10 year old installation...