Whirlpool Dishwasher TUD4700MQ2 Lower Spray Arm Detached

[Shanks13]

Last night, I noted that my dishwasher had completely failed to clean the dishes. Confused, I decided to investigate, and realized that the spray arm wasn't deploying. More than that, the spray arm wasn't actually properly seated in it's housing. I took the dish racks out and did some more investigating, which mainly involved experimenting to see if I could get the spray arm to stay in place and deploy. From what I have experienced, what seems to happen is that the washer turns out and starts pumping water, creating enough force to push the spray arm (and the plastic cylinder/rotating blades its attached to) up out of the housing, such that I can close the door, start a cycle, open the door after hearing a clatter, and find the unit more or less laying on its side in the water.

Alongside the plastic unit, I've got a clearish plastic ring that has a small gap in it and two prong-type things on it. I've looked at a diagram and can see where it's supposed to go, but when I put the pieces back in place, the spray arm unit still gets pushed out of place. How do I go about solving this problem?


Model TUD4700MQ2

[tgoods]

Replace the spray arm assembly, W10164258.

[AJ]

I think thats part #W10164258 

[tgoods]

Thanks, I guess I forgot how to copy and paste.  I edited to correct it.

[AJ]

No problem, it happens

[Shanks13]

Okay, thanks. That makes sense.

Question, though... How do I get the current piece out of the dishwasher? The part you linked to is a whole unit, but in my dishwasher, only the spinning blade and the spray arm pieces came out. The "base" is still in there, and it seems to be twisted in there pretty tightly...