Question about Hoshizaki Commercial Freezer KM-500MAH

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Water leaking onto ice and outside panel on Hoshizaki KM-500MAE

I've found that water is leaking from my KM-500MAE. Part of this water is dripping onto the ice cubes that are dropped into the collection area inside the machine which is making them melt. It is also dripping onto the cover that flips open ot access where the ice is dropped. The machine was full of ice this morning and it has all melted since the water was dripping onto the ice.

Here is a picture of where some water has leaked out. This is right above the cover that opens up to access the ice.

Any suggestions?

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Remove the cover where the persons finger is and check to make sure that it is not covered with ice. Sounds like your machine iced oup and you will need to clean the coils and possibly replace the thermostat

Posted on Feb 12, 2009


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Posted on Jan 02, 2017


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The KM-500MAE has 3 beeps in 3 seconds after 2 consecutive cycles. What should I check?

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Watch it when it fills with water. The fill tube could also be stopped up with ice. The water inlet valve on the back of unit opens when the ice maker needs water. If the valve doesn't seal good because of sediment or wear it will continue to drip and when the water reaches the ice maker supply tube it will freeze. You can take the water line off the valve and watch to see if it drips.

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I have a Kenmore side/side with water dispenser and ice maker. Ice maker is not making ice, but I still get water. Every once in awhile I see a puddle under fridge (a large puddle). When I pull the fridge...

Hi TJ,

It'll cost around $65.00 to take care of this problem. The problem is the water inlet valve. The part number is 4389177 and can be picked up at your local appliance parts retailer or you can get one online maybe for a better price (just plug the part number into your favorite search engine).

Here's what's happening... The valve I mentioned is actually a "dual coil" unit. One coil supplies the cold water, the other feeds the ice maker. These "coils" are independant of each other, so one coil can fail and the other can keep on truckin', no problem. But what you have is an Ice Maker coil/valve that is weak and it's allowing water to bypass.

Basically the IM valve isn't closing shut completely. Imagine a dripping faucet... that's what it's like except you can't hear the drops, you can only see the results. Imagine drop by drop rising up that tube behind the fridge and into the IM. One drop at a time. These drops of water go into the freezer compartment through the IM fill tube. Now when these little ***** drops slide down the fill tube inside the freezer compartment they flash freeze before they reach the IM. One drop after another... drip drop drip drop. All these little droplets of water eventually form a glacier inside the fill tube. 

OK, now we're at the point of glatiation. The fill tube (just behind the ice maker) has completely frozen solid. Now... when the IM "calls" for water to refill itself, the (failed) valve opens up and lets full pressure through. But where is this water/pressure going to go? The pressure builds inside the 1/4" water line until it can't handle it any more, the pressure looks for the path of least resistance. That path is the connection that you found loose. It blew out because the fill tube (into the freezer) is blocked with ice and the reason it's blocked is because the valve isn't shutting off completely.

That's alot of words to say this... it's an easy fix. Get the valve (above). Pull the fridge out. Unplug it. Turn the water off at the wall. Remove the water line going into the valve and set aside. Remove the cardboard panel. Remove the 2 screws holding the valve to the fridge. Pull the valve out. Note the electrical and tubing connections carefully. Get your new valve out and install the electrical and tubing just like the old one. Then rebuild, turn on the water and look for any leaks (use a flashlight and take a minute or two here... finding a leak now will save you alot of misery later). Replace the cardboard and plug it back in.

There ya go! Your first major appliance repair job done successfully? Priceless.


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GE top freezer refrigerator automatic ice cube maker leaks water into the freezer, and eventually on the floor. Water seems to be coming from the area that fill up to make more ice cubes.

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I had a similar problem with a freezer-on-top style Samsung. The solution to that was to defrost the freezer, remove the false backing plate in the freezer (required removal of the ice cube tray. the panel just pops out with a bit of pulling). The drain hole beneath the freezer coils was blocked with ice. This drain passes down into the fridge and then out the back of the fridge into the evaporation pan next to the motor. There is a collector pan under the freezer coils, this and the drain hole were filled with ice. When the freezer goes into its self-defrost cycle the water collects here and then overflows into the fridge.
I removed the ice with hot water/vinegar mixture (so it doesn't re-freeze immediately) and simultaneosuly used a bit of chiselling with a screwdriver to clear the drain plug. I did this from inside the fridge working up the drain hole into the freezer. The whole job took about an hour.

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