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Thread: KitchenAid KUIC18NNTS0 Ice Maker Isn't Making Ice

  1. #1
    Join Date
    Oct 2009
    Location
    Maurepas, La
    Posts
    10

    Default KitchenAid KUIC18NNTS0 Ice Maker Isn't Making Ice

    Model Number: KUIC18NNTS0
    Brand: KitchenAid

    I am at the end of my rope with my ice maker, therefore I turn to the pros!

    Unit: KitchenAid KUIC18NNTS0 (S/N EU3609086)

    Problem: Water does not make it up to the evaporator plate. This began after I cleaned it with proper cleaner. I does appear that the cleaner did its job, so I believe that this was the last time it worked properly. It just cycles water into the reservoir, waits a while, then drains it only to repeat the same process.

    History:

    The unit was installed in February of 2008. It worked great until late August of 2008, when the exterior drain pump gave up. That was replaced under warranty and all was well up until this. The unit is cleaned every time the “clean” light comes on with ice maker cleaner and the condenser coils are also shop vac’d at that time.

    Facts:

    1) The unit does get cold.

    2) The clean light is not flashing, nor are any other lights. Everything looks normal on the control panel.

    3) My first thought was that it was the water level sensor. That has been replaced. No joy.


    4) The recirculating pump was clean when I took it out to test it. It read 5.5 ohms at the x200 setting. I realize that this is lower than the “good range”, which is 8.5 ohms – 11.5 ohms at the x200 setting, according to the manual I have. Read on to see why I haven’t replaced it yet.

    5) When probed, I am only getting ~ 9 VAC at the recirculating pump connection when the pump should be active. The same goes for the cutter grid… 9 VAC. This led me to believe that the transformer was bad. So I replaced it. No ice and still only 9 VAC.


    Ending Thoughts:

    My first instinct is to go ahead and replace the recirculating pump, but I hesitate to do so because I am still not getting 12 VAC to the connector and I don’t know how definite the “good” ohm test range is. The only other culprit I can think of is the control board or more specifically, the relay for the recirculating pump. But since I am already ~ $150 deep in parts, I am not to inclined to take any more guesses.

    My second instinct is to rip this thing out from under the counter top, carry it outside and throw it off the dock into the river! The wife, however, has overruled this option. Negotiations are ongoing.

    Thanks in advance for any advice!

    Brian


    P.S. The good news is that the kegerator is working great!


  2. #2
    Join Date
    Aug 2004
    Location
    McMullen Valley, Arizona
    Posts
    68,449

    Default

    Ahh, I was getting lost in thinking this was a ice maker inside a refrigerator/freezer, but yours is a stand-alone Ice Maker, Wish I could assist you, but I've never worked on Stand-alone ice makers in my life.

    Hopefully another tech. or member can help you out.

    I did a search of our forums here and found a member that may be able to assist you:
    wobiii here lives in Mandeville, LA

    You can private message him if you want.

    Here's the thread he assisted another member on:
    http://www.applianceblog.com/mainfor...-icemaker.html

    Jake
    Appliance Repair School 1987-1988
    Star Appliance Tech. 2 yrs. 1988-1990
    Wards Appliance Tech. 11 yrs. 1990-2001
    Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
    Jake's Appliance Repair Nov. 2005-present

    Look-Up & Order Parts

  3. #3
    Join Date
    Oct 2008
    Location
    Mandeville, LA
    Posts
    17

    Default

    I seriously doubt it is your pump. If you take the cover off and disconnect the small plug in the middle (if I remember right) you can send it back to a time default fill like the older ones. You may be able to bypass that sensor and see if it continues operation that way. If it continues doing the same thing I've been told that it is a computer board issue. I haven't ran across many of these things and usually refer the customer back to whirlpool to beg for some warranty coverage or help from them because everything for this thing is expensive. I would tell you that changing the control board and the wiring harness would get it fixed but changing that harness would be a b**ch.

    Look at the service manual if you can get a hold of one and try to bypass the sensors that are not needed for operation. Then check out the connections on the harness especially around the pump and water level sensor. They should be clean, not slimey and gunky. If they are try cleaning them off and test for operation. The sensors are, well, sensitive and that stuff could be throwing some bad readings. You may want to contact whirlpool and ask if your unit was affected by the recall while you are doing this. They had some issues with the fill valves and would leak onto your floor. While you are on the phone ask if they can give you a discounted price or help you out with a computer board. They may be feeling generous around this time of year.

    I really think in the end you will end up replacing the computer board to get it working again. Good luck and sorry for the delayed response.

  4. #4
    Join Date
    Oct 2009
    Location
    Maurepas, La
    Posts
    10

    Default

    I went ahead and ordered a pump before wobiii posted. It arrived and it tested worse than the one I had before and obviously didn't work. Sears is sending me another one today.

    As for the connections, they all seem fine. I have also been told by another technician that this transformer is only rated for ~ 9 VAC, which leads me to believe that the control board is good.

    We'll see what happens once I get the new pump in!

  5. #5
    Join Date
    Oct 2008
    Location
    Mandeville, LA
    Posts
    17

    Default Email sent

    Sent you the tech sheet, run the diag and see if that gives up any info.

  6. #6
    Join Date
    Oct 2009
    Location
    Maurepas, La
    Posts
    10

    Default

    Thanks! I should have the new pump in Monday and I'll install and run the diagnostics and see what I can get.

  7. #7
    Join Date
    Oct 2009
    Location
    Maurepas, La
    Posts
    10

    Default

    RESOLVED!

    I replaced the pump. No joy.
    I then took wobiii's advice and replaced the board. No joy.
    I then got very, very aggravated and let it lie over Christmas and New Year's. There was joy!

    This evening I decided that it had to be fixed. It turns out that it was the wire between the recirculating pump and the transformer. So, $250 in parts later, it was a wire worth pennies. The good news is that I now have replacement parts!

    Brian

  8. #8
    Join Date
    Aug 2011
    Location
    Mobile, al
    Posts
    2

    Default

    Please advise...I'm in a similar position. I ran the cleaner through and now it won't function properly. After several hours water does not stay in resevior and what little water is there is frozen.

  9. #9
    Join Date
    Oct 2008
    Location
    Mandeville, LA
    Posts
    17

    Default

    Quote Originally Posted by Vinnyadams View Post
    Please advise...I'm in a similar position. I ran the cleaner through and now it won't function properly. After several hours water does not stay in resevior and what little water is there is frozen.
    Sounds like your cap is loose or cross threaded on and leaking. Start there, then check the water connections at the pump. I've seen the hoses come off before.

  10. #10
    Join Date
    Aug 2011
    Location
    Mobile, al
    Posts
    2

    Default

    Thx! The cap seems to be fine. I just turned the machine on again. Water immediately fills res and does not leak. Eventually say after 3 or 4 hours the res is not being refilled. The pump connections seem to be okay because for the first 3 or 4 hours I can hear and see the res be refilled. Why would the pump quit refilling the res?

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