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FIXED KitchenAid KDTM354DSS4 Error codes sometimes does not completely drain

blue60

Premium Member
Joined
Oct 20, 2022
Messages
2
Location
Colorado
Model Number
KDTM354DSS4
Brand
KitchenAid
Age
6-10 years
Our 7 year old KitchenAid KDTM354DSS4 depending on the wash cycle settings does not completely drain the final rinse cycle. I see draining occur after wash cycle and some rinse cycles. Express cycle always runs without issue and complety drains.

I ran several diagnostic cycles and I'm seeing the following error codes:
Interval 24, 8-2
Interval 23, 6-4
Interval 22, 8-1
Interval 21, none
Interval 2, 6-2
Interval 1, none

The diagnostic cycles finish without issue and all water is drained when compete and the door vent is running until I open the door.

I checked the drain hose, removed the drain pump, impeller and hoses seem clear, clean with no blockage. The float moves freely and I hear clicking as I moves up/down.

Also, note. I smell an odor (like a hot electrical smell, not a burning smell) coming from door vent when running with SANI rinse or HIGH TEMP wash.

Looking at ordering the following new parts:
Drain pump.
Inlet valve.
Possibly a new control board and door vent.

Thanks for any help with minimizing parts replacements. On the fence to cut loses buy new dishwasher and not waste money on parts.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
135,824
Location
Vicksburg Junction, Arizona
Hi, Your model has the problematic door vent that can cause this problem you are having.

Do this first--->Disconnect all the wire connectors to your door vent and see if it runs through a complete cycle without the drain issue your having now.

--->Start reading what bigbuck said at post#18 here:

Your model uses the exact same door vent. If it runs through a complete cycle and everything is back to normal, then order and replace the door vent assembly.

Here it is for your model you can order:
WPW10469574 Vent


To access the vent assembly you will need a T-15 torx screwdriver: Remove 4 screws (long) across top of door, then remove 10 screws (short) on the sides, then the outer door panel pulls off.

Let us know what you find.

Jake
 

blue60

Premium Member
Joined
Oct 20, 2022
Messages
2
Location
Colorado
Jake,

Thanks for your timely reply and sharing your expertise!

I had noticed the vent was significantly louder than normal.
I ordered a new Vent and Controller Board after noticing this and before your reply.
After reading your reply, I decided to skip the test steps and to replace both the Vent and Controller Board since I had the door apart and didn't want to waist any more time on this issue.

After the new parts were installed I sucessfuly ran diagnostics without any Error Codes. Next I ran the Normal Cycle with ProScrub, HIGH TEMP Wash and SANI rinse which always failed to drain, this worked like new and quiet.

The problem is fixed.
However, I'm not 100% sure if it was the vent or controller board. I assume it was the vent given the noise and Jakes diagnosis along with other threads on this forum.

Thanks to all for running such a great and useful forum.
 

Kpred

Premium Member
Joined
Oct 23, 2022
Messages
2
Location
NJ, United States
Hello,

I'm coincidentally having almost the exact same issue with my dishwasher of the same model. It is giving me code 8-2 and is frequently failing to drain. I hear the drain pump humming during the drain cycle (like it's trying to spin but can't).

I removed the drain pump to have a look, expecting to find something clogging the impeller, but to my surprise it was all clear. I've checked the drain tubing for any kinks or obvious signs of blockage - there was none.

While I had the drain pump removed I tested it and saw that the impeller did spin.

Tried disconnecting the vent, but unfortunately saw no change in behavior after doing so.

At this point my best guess is that the drain pump is dying so I've ordered a replacement. Anything else to try while I wait for the part to ship?
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
135,824
Location
Vicksburg Junction, Arizona
Jake,

Thanks for your timely reply and sharing your expertise!

I had noticed the vent was significantly louder than normal.
I ordered a new Vent and Controller Board after noticing this and before your reply.
After reading your reply, I decided to skip the test steps and to replace both the Vent and Controller Board since I had the door apart and didn't want to waist any more time on this issue.

After the new parts were installed I sucessfuly ran diagnostics without any Error Codes. Next I ran the Normal Cycle with ProScrub, HIGH TEMP Wash and SANI rinse which always failed to drain, this worked like new and quiet.

The problem is fixed.
However, I'm not 100% sure if it was the vent or controller board. I assume it was the vent given the noise and Jakes diagnosis along with other threads on this forum.

Thanks to all for running such a great and useful forum.
Excellent, glad to hear that.(y)

Thanks for the update!
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
135,824
Location
Vicksburg Junction, Arizona
Hello,

I'm coincidentally having almost the exact same issue with my dishwasher of the same model. It is giving me code 8-2 and is frequently failing to drain. I hear the drain pump humming during the drain cycle (like it's trying to spin but can't).

I removed the drain pump to have a look, expecting to find something clogging the impeller, but to my surprise it was all clear. I've checked the drain tubing for any kinks or obvious signs of blockage - there was none.

While I had the drain pump removed I tested it and saw that the impeller did spin.

Tried disconnecting the vent, but unfortunately saw no change in behavior after doing so.

At this point my best guess is that the drain pump is dying so I've ordered a replacement. Anything else to try while I wait for the part to ship?
Hi,

Yes usually the cause of the drain pump working intermittently is the drain pump itself is faulty.

To Verify that--->You will need to stay at the dishwasher and when it doesn't drain you will need to check for 120 volts at the drain pump.

You will need to remove the electrical connector from the drain pump and get a multimeter and set it on AC Volts, then put your meter leads in the drain pump electrical connector that you remove from the drain pump, then WHEN IT SHOULD BE DRAINING see if your meter reads 120 volts. If so, and the drain pump is not running, then your drain pump is bad.

Here's the drain pump for your model:
Drain Pump W10914557


Let us know what you find.

Jake
 

Kpred

Premium Member
Joined
Oct 23, 2022
Messages
2
Location
NJ, United States
Hi Jake,

Took out the multimeter and saw that the connector was reading exactly what you told me it should.

The new drain pump arrived yesterday, swapped it in and it’s working perfectly again!
There were no obvious signs of failure on the old pump, so I suppose something internal must have been failing. Regardless, thanks to your help, the dishwasher is up and running once more!

Side note for future reference: is there any good way to remove water that won’t drain out of the dishwasher? Is a Shop Vac the best bet?

We have a 3 month old baby and are running it at least once a day to keep bottles/pacifiers/pump things clean and “sanitized”. Having to do all that by hand was getting quite tiresome, so we really appreciate your awesome website and expertise. Is there any way for us to help support you guys?

Thanks again,

Kevin
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
135,824
Location
Vicksburg Junction, Arizona
Took out the multimeter and saw that the connector was reading exactly what you told me it should.

The new drain pump arrived yesterday, swapped it in and it’s working perfectly again!
There were no obvious signs of failure on the old pump, so I suppose something internal must have been failing. Regardless, thanks to your help, the dishwasher is up and running once more!
Excellent Kevin, glad to hear the new drain pump fixed it.(y)

Thanks for the update!

Side note for future reference: is there any good way to remove water that won’t drain out of the dishwasher? Is a Shop Vac the best bet?
Yes shop vac is best.

We have a 3 month old baby and are running it at least once a day to keep bottles/pacifiers/pump things clean and “sanitized”. Having to do all that by hand was getting quite tiresome, so we really appreciate your awesome website and expertise. Is there any way for us to help support you guys?
There is a Donate button at the very bottom of this page.

Thanks!

Jake
 
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