How to remove the rotating arm on a Kitchenaid Dishwasher that smells?

SOURCE: Kitchenaid dishwaser poor cleaning KUDS24SE

There are 2 likely candidates. The first is the chopper - the device that grinds up the food. The second is the check valve - a rubber flapper that sets to the right of the chopper. Over time it becomes stuck open which reduces pressure at the spray arms.

Good luck - I had the same issue on my KUDR01J.

SOURCE: Kitchenaid, new dishwasher, stopped cleaning top rack dishes

The problem most people encounter with dishwashers is a simple inability to get the dishes clean. There might be stuck-on food or residue from the detergent. A water pressure problem may be the culprit. You may need to replace the water intake valve. Another common problem is mineral build-up. If your house has hard water, the mineral build-up can clog the water jets. Clear each jet with a wire or pin, and run an empty load with some vinegar in the detergent dispenser about once a month.

Sometimes, the dishwasher has problems draining properly. There could be a clog in the drain hose, or a problem with the pump. It's also possible that the dishwater is getting too sudsy, and sensors in the washer aren't detecting the soap foam as water. This causes it to shut down the drain cycle too early. Just use less detergent.

SOURCE: Kitchenaid Superba Dishwasher clogged or jammed with broken glass

You will probably have to get at it from the bottom, possibly the back of the washer. Here is a link to your repair manual.

http://kitchen.manualsonline.com/manuals/mfg/kitchenaid/kitchenaid_dishwasher_product_list.html

SOURCE: Upper spray arm is not turning

Hi Chris,

It sounds to me like a restriction in the pump. I put together some information here on cleaning it out. If you try these please give me some feedback as to if they help or not.

Thanks!
http://www.fixya.com/support/r4628450-poor_cleaning_or_noisy_pump_whirlpool_or