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The ice maker is producing hollow cubes and excess water is pooling and freezing on the bottom of the ice bin. A tech who once worked on the unit informed me that the front most cube cel had the temp sensor incorporated into it and that if the front cell didn't fill with water, the ice in ajoining cells would discharge cubes prematurely, thus producing hollow cubes. He adjusted the icemaker so that the front of the unit was slightly lower than the rear, allowing the front cell to fill. When we, again, encountered the problem, I tried to get the front of the unit down as low as I could, but there'es not much "fudge room" and the problem persists. Also water from the hollow cubes seems to be collecting on the cube ejection apperatus which tends to jam the whole machine. Suggestions?

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  • lrcracklin Oct 19, 2010

    Thank you Woodchuck, your response makes sense to me, as, system wide (water dispensor, etc.) the water pressure is down by a considerable degree. The water filter has been changed recently, so I don't believe it to be the source of our problem; however, I may very well pull the refrigerator out from the wall to confirm that there aren't any kinks in the copper supply line. If I find the water flow to be sufficient from the back , then I'll do as you advise and check the interior water flow. Since we had our first service call regarding the ice maker, I've been under the assumption (per the service tech) that hollow cubes resulted from water not reaching the foremost mold where, at least according to the tech, the sensor that indicates that the cubes are sufficiently solid is located ( are you familiar with said sensor and it's location, or was I getting a technical runaround?). Therefore, all of my efforts to date have been focussed on trying to get the tray unit to tilt down in the front, thus facilitating a good water flow to the front. I plan to get on it first thing tomorrow and will let you know how thing work out. The time delay that we're encountering is due to the fact that I did not receive an e-mail response to my query and had to contact Customer Support to figure out how things work at FixYa. I'm pleased to have, at least, solved that problem and am looking forward to getting busy on it tomorrow. Thanks again, Lance Marcussen

  • lrcracklin Oct 22, 2010

    Dear Woodchuck,
    Following your suggestion, I replaced the copper water feed tube with a more flexible plastic tube. I had noticed that the copper had a kink in it where it emerged through the hole from under the house. so replacing it with plastic left me feeling as though the problem was fixed; sadly enough, however that was not the case. The unit is still producing hollow cubes for the most part (approx. 90% hollow). You had also suggested that I may have to adjust the water flow from behind the control panel, unfortunately, there doesn't seem to be an adjustment screw or knob that indicates or - water flow. I have noted that the water dispenser has a VERY low flow as well. I have no idea how the ice maker water supply and water dispenser water supply interface --- I suspect that there in a proportioning valve of sorts, but one thing to be mindful of is the fact that we have very hard water with a lot of iron in it. I have a dual canister 5 micron whole house filtration unit, but can't help but wonder, as you noted, if I might have a sediment problem. At this point, I'm at a bit of a loss. The refrig. water filter has been changed recently, so I've pretty much ruled that out as a problem, but I'm thinking of removing/bypassing the filter, disconnecting the water supply and applying compressed air to the water inlet with the hope of blowing any possible accumulation of sediment out. Any thoughts on this approach? Also, is the valve, that you alluded to in your recent note, located at the main water hook-up at the bottom of the refrigerator or up top behind a panel in the freezer compartment? I appreciate your staying with me on this Woodchuck, I've had three back surgeries, so I can only get on the job when my back allows, thus my slow responses to your suggestions. My physical limitations notwithstanding, I repair most all of my vehicles and appliances and if I'm not familiar with a particular unit, am not the least bit shy about asking a few questions and digging in. Thanks for your patience and your input. When we get this cleared up, it will certainly be worth more than $6 to me. Waiting to hear from you, Lance

  • lrcracklin Oct 25, 2010

    Dear Woodchuck, have you received my responses and results from the suggestions that you have proffered? As I mentioned in my last note, I am experiencing low water flow in both the water dispenser and( apparently) the ice maker. I have replaced the copper water input line with a flexible tube to reduce the possibility of having the line kink and it is working as expected. I have a two canister whole house filtration system (5 microns) which is necessitated by hard water which contains iron and have changed all filter media, including the canister inside the refrigerator. You had mentioned a water valve that may be partially plugged with sediment, is this valve located at the bottom of the freezer where the water supply comes in or is it located up in the freezer compartment? At this point, I am getting approx. 30% solid cubes, the remainder continue to be hollow. Looking forward to any other suggestions and a bit more specificity about the location of the valve that you mentioned. Regards, Lance



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Hollow cubes are caused by not having enough water in the mold.
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 blocking the fill tube and causing the water to drip into the ice bin so . you don't have enough water in the old. You can take the water line off the valve and watch to see if it drips.


If you're not getting enough water in the mold
look for an adjustment behind the plastic endcover with a +/- on it.+ is more water.

Posted on Oct 16, 2010


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