KA KUDI21 won't fully drain...

[mike_g]

Hello.

I have posted here in the past, about my Kitchen Aid KUDI21DSO. It has worked hard for us, for the 10 years we have owned this house.

It has recently been leaving water in the tub at the cycle's end. I have had a little water left in the tube for a while now, but recently, it has been leaving the tub nearly full. I just ran a "rinse hold" cycle and canceled it to test it out. The motor ran as normal, but only a little water came out near the end of the drain cycle.

What could this be? It might be worth pointing out that my inner screen on the wash arm support is no longer effective.

So far, I disconnected the rubber drain hose on both sides of the check valve. The water left in the tub drained freely from the tub area. The check valve looks like it is wide open (may not be functioning as a check valve anymore...).

Thoughts?

 

[mike_g]

PS: I haven't used an air gap on the plumbing. The drain hose links to an outlet in the sink drain just below the counter.

 

[rp2813]

Yeah the check valve should be in the closed position except when draining, so that's not your problem.  Experts should be showing up here with things to troubleshoot.

 

As long as you're down there, you can replace the check valve with a currently available GE part that will fit.  Spray arm action can be compromised when the valve doesn't close anymore. I may be able to locate the part number if I do some digging and if nobody else posts it here.

 

[countryguy]

Disconnect the hose from the drain connection under the sink to check if the connection is plugged with grease buildup, etc.  A friend had this problem because she did not operate her dishwasher often enough.  The grease eventually hardened and plugged the drain connection completely.  I cleaned out the connection, reattached the drain hose and voila, the dishwasher was draining again. 

 

Gary

 

[combo52]

Poor Draining KD21 DW

The KD 21 DWs had very few drain pump problems as the drain pump impeller is made of SS and is very durable. Assuming that the drain hose from the CV is clear it is possible that a piece of broken glass, metal, bone etc is stuck in the outlet of the drain pump housing, which will require the pump to be dissembled and inspected.

 

[mike_g]

Thanks for the thoughts. I will give it a try and post back.

 

[mike_g]

Hello.

I have disassembled the top pump area until the drain pump impeller (SS cutter style) is exposed. I assume the drain water flows thru the oriface, under the SS plate and then down toward the outlet hose. Can I remove that SS plate or any more items from the top of the DW or do I need to go underneath?

 

[mike_g]

OK, I managed to pry out the SS plate, which must be the drain pump cover. I removed the drain impeller, and generally cleaned out this area. I am running a "rinse and hold" cycle to see how it behaves.

By the way, could this possibly be a timer problem? That is, the timer is shorting the amount of drain time?

 

[mike_g]

kinked hose!

I think it is fixed. Kinked drain hose under the DW, behind the motor.....I don't know if that was the entirety of the problem, but it certainly was most of it.

Don't overlook the simple things!