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KitchenAid KUIC18NNZS0 Ice is thin after multiple clean cycles

joeb3

Premium Member
Joined
Jul 11, 2022
Messages
8
Location
NE FL
Model Number
KUIC18NNZS0
Brand
KitchenAid
Age
6-10 years
Have this standalone ice machine, approx 5-6 years old. has always work well. i'd know when it was time to run a clean cycle because the ice would start getting thin. after a clean cycle with Afresh cleaner and a new filter, she'd be fine and typical ice cubes were prob 5/8" thick. would be as good as new and could fill the bin back up overnight. i noticed after my most recent clean, the ice was thin and it struggled to even half-fill the bin.

when attempting to diagnose i noticed that when it would fill the water bin, it would run for almost 3 minutes. all the overflow would come down the drain and melt much of the ice at the bottom. i figured it was an easy fix by changing out the water fill sensor. sure enough, now it cuts off within 2 or 3 seconds of the bin being fill. fill problem solved... but - the ice is still thin.

well i googled and attempted a reset of the system by pressing on/clean for 5 seconds until the flashing LEDs... still no improvement (not confident that's the correct procedure for my model). seemed like it had some odd behavior, so i swapped out the control board. exact same thin ice (only about 1/4 thick). then i thought the water coming off the freeze plate wasn't getting enough recirculation from the pump... so i replaced the recirculation pump. also thoroughly cleaned the water distribution tube. nothing inside it. still same ice.

cleaned the fins in front of the coils. the fan appears to spin fine. ran another cycle of Afresh and replaced the filter which was only a month old... and that seemed to be a waste now also.

so long story short... i'm getting good at breaking it down to get to a part for replacement... haha. i've run multiple clean cycles, replaced many components which could have been suspect due to related dialog and threads i've seen throughout this forum (i'm sure many of you are shaking your heads - haha). dont know what else to try at this point. it makes ice, yes. but the ice coming off the freeze tray is not as thick i it used to be. any other ideas? thank you in advance!!!
 

joeb3

Premium Member
Joined
Jul 11, 2022
Messages
8
Location
NE FL
sorry, left out anther attempted repair detail.... had a hypothesis that the water inlet valve could be leaking fresh water into the water bin, thus warming the water up some before it crossed the freeze plate... so i also replaced the water inlet valve. ice still max'ing out at about 1/4" in thickness
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,025
Location
Redmond, Oregon

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joeb3

Premium Member
Joined
Jul 11, 2022
Messages
8
Location
NE FL
Thank you Jake!!!! i ran the diagnostics and didn't observe any errors. to check though, for step 9 for the compressor and hot gas valve, the 'max ice led' was illuminated solid for a couple of minutes, then went to a blinking state. is that what is supposed to happen?

for step 8 i could tell that the freezing plate was icing up but i didn't really detect any specific pattern. just seemed like the residual drops from the distribution tube would freeze but i didn't really see anything dramatic on the freeze plate.

given all that and not having any specific error codes - and that i am making ice (just thinner than i'm accustomed to), what would you point me towards next? am i at a point where i need to have a pro come in and check the refrigerant levels? many many thanks again!
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,025
Location
Redmond, Oregon
i ran the diagnostics and didn't observe any errors. to check though, for step 9 for the compressor and hot gas valve, the 'max ice led' was illuminated solid for a couple of minutes, then went to a blinking state. is that what is supposed to happen?
The tech data sheet is not totally clear on that, so I have no clue either, sorry.

given all that and not having any specific error codes - and that i am making ice (just thinner than i'm accustomed to), what would you point me towards next? am i at a point where i need to have a pro come in and check the refrigerant levels?
Yes, its best to contact KitchenAid at 800-422-1230 to come out and see what's going on.

Let us know what happens.

Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,025
Location
Redmond, Oregon
It seems to me from other people with this same problem, the new water inlet valve fixed the thin ice issue:


Here's the water inlet valve for your model you can order, if needed:
W10881366 Valve


Jake
 

joeb3

Premium Member
Joined
Jul 11, 2022
Messages
8
Location
NE FL
yea, that's one of my already-tried (yet issue still exists) parts replacement attempts. thanks
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,025
Location
Redmond, Oregon
Ok, then you have a odd problem, its a good idea to contact KitchenAid at 800-422-1230 to come out.

Let us know what happens.

Jake
 

joeb3

Premium Member
Joined
Jul 11, 2022
Messages
8
Location
NE FL
Final verdict...

Despite Jake's efforts and my attempted parts replacements i ultimately had to call in the pros. Kitchenaid sent out a repair tech from WFCC Fields (Fields Appliance Service). within15 mins i spent $130 on his assessment which led to a repair estimate of $1700 for the sealed system replacement including the compressor and evaporator. given that, i ordered a brand new one for essentially the same price as the extensive repair costs. Thank you again Jake! Appreciate you trying to help me out, but after i heard sealed system replacement that was beyond my capability.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
134,025
Location
Redmond, Oregon
Ok Joe, thanks for the update!

Jake
 
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