GE Adorda dishwasher

I have a Quietpower III Adora dishwasher with the same complaint, and have had it out on the kitchen floor several times trying to find the groaning problem. I was 90% there, having eliminated anything under the tub and the back of the countertop, etc. and had already put in a piece of foam rubber between the top tube and the top of the tub, but that still wasn't the problem....when I browsed for "dishwasher groaning" and found this site. THANK YOU Vish and others!
It seems the middle tube is indeed the culprit, and tying it at the rear, where it meets the outflow of water seems to help the best. Now I can start to rekindle the love affair I've had with Adora for a couple of years now. It's finally quiet again!

We have been living with this noisy so-called Quietpower II for weeks and I was actually considering buying a new dishwasher.
I tied a wire tie around the middle spray arm tube and the noise is gone. My dishwasher is quiet again.

Thanks a million for the advice.

This one is a known issue and an easy fix.
Use a tie wrap to securely tie the water tube for the middle spray to the upper basket. That's it. Believe it or not, it's that simple. You may want to secure it at the front and the back. To test this you can use the tie wraps used to closed the plastic grocery or bread bags. If this solves the problem you can buy a bag of nylon tie wraps from any hardware store.

I had a similar problem with another GE model with a similar problem. The dishwahser used to make a horrible grinding noise during the wash cycle. One I secured the middle sprayer arm the grinding noise went away.

There is a little plastic holder for the water tube of the middle sprayer. When it breaks (and apparently it does easily as I have had my Adora dishwasher only 6 months), the tie trick does work.

This WORKS!!! Thank you, fellas. Much appreciated. Thanks to you, I narrowly avoided shooting my dishwasher. Thanks for taking the time to post. It's like getting a rock out of my shoe. God, I love the internet...