My husband has been blowing out the lower spray arm every few months and removing little bits of paper and gunk. Each time seemed to help. He passed away recently and I tried the same thing he tried but had no luck. Being desperate, I looked online for some help. I reached your company, explained my problem, I found the model number and was off to the races. Ordered the replacement spray arm assembly which required no screws or bolts, just placed the new arm in place and so far so good. My dishes are coming out immaculately clean. Hope this fixes the problem for a little bit so I can save up for a new dishwasher! Thank you so much to the person on the Help line and the prompt shipment of my new part. You people rock!