Question about KitchenAid Dishwashers

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I have a Kitchenaid KUDK03CTSS2. It goes about half way through the entire cycle, let's say half hour in and then it sits there buzzing/droning for at least 30-40 minutes, then it finishes fine. Had a service guy in and he would't wait for the symptoms to appear. Everything is good at the beginning. He replaced the pump motor, didn't find any debris in the unit. But it's still doing the same thing.

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  • jbergh Sep 28, 2010

    Ok, checked the unit like you said, there was no water in it and little heat during this droning/buzzing phase. Ran a rinse cycle, I suppose that's cold? Was fine, a bit of buzzing when it drained. Certainly not like the other. My gut is telling me the brain is messed up on this thing and it gets stuck in a mode for a long period for no apparent reason.

  • jbergh Oct 05, 2010

    Ok, got the new vent and seal. Installed it. Found the innerdoor screws mostly loose, tightened. Ran the unit. Buzzing marginally better. Opened the door midway through this and noticed the soap pack laying melted in the bottom of the tub. Cancelled cycle. Pulled off toe cover and restarted. Noticed a white wire with a red stripe laying under the motor. Has a heat shrink on it but looks like it broke off of something.

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Turn the dishwasher off about 20 minutes after it starts the droning/ buzzing and feel the water temperature.

Also run the dishwasher in a short cycle where it uses cold water only and see if there is any difference.

Please post a comment to confirm your observations. This will help me understand the problem better in order to give you some solutions.

Posted on Sep 27, 2010

  • Sam Sep 28, 2010

    I am trying to locate a user manual for you model to reconfirm, but from what you have observed it appears the droning buzzing is coming from the dryer vent. It might be having some problem. The reason you find no water after 20 minutes is that the dishwasher has actually completed the wash/ rinse program and is waiting on the dryer to finish off. Do you find the dishes are dry and clean at the end? The air vent solenoid should open during the dry cycle. see item 5 on page 3 in this list. The actual part would look like this.



    At this stage I don't believe the controller has got any problem.



    Hope this helps locate the offending part.

  • Sam Oct 06, 2010

    Sorry to hear the wire has come off. Most likely it has come off the harness (see item 12 on page 3). Might have been tugged from the other end of the connector when you were working on the vent assembly. Unfortunately I do not have a wiring diagram for your dishwasher. But most likely it might be the detergent dispenser latch wire.

    Check the back of the detergent dispenser (item 8 to see if the connector is missing). The dispenser door would have opened and dropped the detergent (soap) on the bottom of the dishwasher.

    I am afraid this will need a bit of tracking back on which connector pin from the control unit it came off. (item 8 on page 2).

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