Question about KitchenAid KUIS18NNT 18" Automatic Ice Maker with 35lbs. Storage Capacity, Drop Down Door & Accepts Custom Panels

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Kitchenaid under counter ice maker: water circulating pump work when unit is in cleaning mode but not when unit is in ice making mode

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Kitchen Aid Ice maker is a piece of junk. Best to fix it is to get rid of it and tell friends not to buy it.

Posted on Aug 06, 2010

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Sounds like the selector switch is open. Try a new switch. or wire it temporary direct to the opposite side of the switch but both the compressor and pump will run all time until full of ice is sensed. IE no clean cycle.

Posted on Mar 12, 2009

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Ice maker kitchen aid kuic18nnts won't pump water over chill plate. Replaced circulating pump still no water.


Hi,

Does the circulating pump- pump water? Remove the hose that goes to the spreader bar and run the unit again, if it moves water as a new pump should check for blockages in that hose and spreader tube. Get back to me if this doesn't work please. Personal email address kidlmo@gmail.com...

Jul 21, 2014 | KitchenAid KUIS18NNT 18" Automatic Ice...

1 Answer

Kitchen aid clean light keeps on red and machine doesnot make ice


Hi,

This unit has a max ice run counter in the software, so after 500 cycles this unit requires you to run a clean cycle completely. After this is completed, it will rest and allow you to produce ice again, use nickel safe cleaner to do this or just run clean cycle without cleaner if unit is already clean. This cycle should last about an hour or so. Good Luck

Jun 10, 2014 | KitchenAid KUIS18NNT 18" Automatic Ice...

2 Answers

Have kitchenaid undercounter ice maker, came with the house i bought a year ago. the problem is the water freezes in the resevoir. i have replaced the circulating pump, the thermistor, some sensor,...


on the right side of the ice bin and above the cutter grid are 2 sensor plugs, unplug the one towards the rear of the machine (usually has light brown w/red striped wires). if this does not fix the problem then replace the main control board and the transformer. Also the water doesn't go to the grid, it rolls across the evaporator, freezes a slab of ice that then slides down to the cutter grid. the cutter grid should be somewhat warm, it is what cuts the ice into the little squares. I've worked on these machines for around 7 years now and have only seen this problem once, this should fixya

Mar 02, 2011 | KitchenAid KUIS18NNT 18" Automatic Ice...

1 Answer

Viking under counter ice maker stopped making ice... ugh.


This unit senses the "freeze plate" temperature to decide when to go into "harvest". Either the the temperature sensor (most likely called an evaporator thermsitor) is lying to the control or the plate is not getting cold enough due to a sealed system issue (usually a bad hot gas valve). If you carefully loosen the front grill (staying clear of the wires going to/from the ON/OFF/CLEAN switch) you can see the hot gas valve near the center in the bottom of the mechanical area. If the copper tube coming out of the bottom of the valve is cold during the freezing cycle...it is bad. If not, I would try the thermistor first. If you do not feel comfortable doing this, you should contact a servicer to diagnose the unit for you. Good-Luck.

Apr 25, 2009 | KitchenAid KUIS18NNT 18" Automatic Ice...

4 Answers

Kitchen aid under counter ice maker


S, the interior light is timed. If you leave the door open for more than 5 minutes, it'll shut off automatically. Close the light switch manually (at the top up there) and hold for 5 seconds. After you release it, you may see a red LED where the clean light is... disregard for now.

Now replace all of the hoses you removed for cleaning. These can be cleaned using the "cleaning method" posted and labeled on the inside of you IM door.

Now go get some of this, or something similar and follow the cleaning instructions.

As an aside here... I ran a service call for a guy who did exactly what you did, except that he chose to go to Home Depot and get all new tubing. (!!!!) Well, the tubing didn't fit and even if it di it was routed improperly. Then he called me to come fix it.

Close to $200 later everything was back to normal. All he had to do in the first place was to maintain his IM like it was a swimming pool. Get the right chemicals and use them as instructed on the label.

Please don't misunderstand. I'm not scolding or anything like that... it's just that sometimes the simplest approach is the best approach. Your high dollar IM is a complicated and computer controlled piece of equipment, when you start pulling the guts out, the "brain" has a difficult time interpreting what your doing, that's all.

Let us know how it goes. If there are any additional symptoms, please let us know immediately.

Mar 17, 2009 | KitchenAid KUIS18NNT 18" Automatic Ice...

1 Answer

Ice maker is switching itself to clean mode. I have to push stop ...wait a few minutes and switch it back to "ON". It is doing this quite frequently. In addition, once it is switched back on, the water...


hi my name is mark, sounds like the clean switch is sticking. does this unit have a membrane in front of switch. switch might be wet. also you might let the clean time out, then restart unit.

Feb 04, 2009 | KitchenAid KUIS18NNT 18" Automatic Ice...

1 Answer

Kitchenaid stand alone ice maker. Fills resevoir with water and begin to make ice. When the resevoir is empty, the unit doesn't know to let water in again and the pump just cavitates away


Check and see if your cutting grid is still lined up on the back side towards the freezer plate. I have had the cutter miss align on some and failed to see it then just have to remove the thumb screws and re set the back end. Feel for more roughness from scale. Especially on the sides and edges. you may need to clean it again

This unit I believe is set to allow water in when it goes through a harvest. it wont refill until the coldest temp is reached then will stop filling after the warmest temp is reached.

Jan 29, 2009 | KitchenAid KUIS18NNT 18" Automatic Ice...

2 Answers

Kitchen aid ref, ice maker quit making ice


hi my name is mark, do you have a water filter on this unit. shut off water to ice maker. remove water line from ice maker, hold water line in a bucket slowly turn on water. if you get water. then the fill solinoid has failed. if you do not get water trace water line back to water shut off. if it is the solinoid valve. you will need model and serial number to order part

Jan 02, 2009 | KitchenAid KUIS18NNT 18" Automatic Ice...

1 Answer

Under counter ice maker water pickup problem


Most likely your plastic curtain is not keeping the water in the sump area. ( I'm assuming it makes round cubes)? Look under the sump for any dripping if its a pretty steady drip replace your water curtain and the holder that's with it.

If you have a cutting grid type ice machine this is all together different and I need to tell you separately about that.

Jan 01, 2009 | KitchenAid KUIS18NNT 18" Automatic Ice...

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