Ice maker is making hollow cubes in half the slots

Hi,
Hollow ice cubes are a result of lack of water to ice maker. This can be caused by lack of water pressure (clogged filter, bad water valve, obstructed fill tube, etc..) you will need to find the cause to correct this hollow ice cube issue. The ice maker should take on 5.5 oz of water when it cycles (2/3 cup). Mot of the time its a water supply issue and the line could be kinked behind the unit as it was rolled back into place.

Good Luck

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Are you having any temperature related symptoms, i.e., soft ice cream that appears to have melted slightly and refrozen, soft breads in the freezer, warm or hot outer surfaces anywhere? If cooling is not a problem whatsoever, are any of your ice cubes smaller than normal, or do you have hollow ice cubes; you would be able to crush the cubes in your hand? If either of these pertains to you, you have not enough water coming to the ice maker, due to a faulty water valve not opening completely, or your water source pressure is low. disconnect your water line from the fridge, test pressure of the water line by placing end in a bucket, turning water on. It will be obvious how the pressure is. if pressure is good to really good, you have a bad water valve on the fridge. If pressure is so-so to bad, change source water valve.
If cubes are not small nor hollow, but rather normal full size cubes, just not enough, you probably have an intermittent problem with your icemaker, replace that.

Hollow cubes indicate the water inlet valve is defective ( not letting enough water into the ice maker ) . Replace the valve behind the refrig ( the piece the wall water lne connects to on the refrig ) . Do not try adjusting the water on the ice maker itself , even if someone else suggests it , as this adjustment is factory preset .

Whats happening is the ice isnt freezing all the way. Try cleaning your condensor's under the frig.In Hotter weather when condensor's get filled with dust it causes the frig to cycle to ofeten. In turn your cubes aren't freezing all the way.

some fridges are designed to make hollow cubes where they always hollow or just recently

Most ice makers have an adjustment screw to control the cube size. Its usually hidden behind a plastic panel on the front of the ice maker. A quarter turn either way and some trial and error testing should get you pointed in the right direction to your ideal ice cube.

Hollow cubes are usually a result of lack of water supply

how old is it ??? it only makes 8 ice cubes every 2.5 hrs or so when running correctly.some times 5 cubes depending on model. try reaching into the ice maker and feel the ice being made is the tray full or is there empty slots in the ice mold(asif not enough water). are the cubes hollow??( a sign of low water pressure)). have you replaed the waterfilterrecently (if applicable) old filterwill restrict water flow.

check your incoming water pressure, change the water filter recently? hollow ice cubes is a sign of low water pressure

your refrig has a built in bypass in the filter housing so yes it will work with out a filter in place. if you have not replaced your filter in the last 6 months that is likely the problem. Hollow cubes are usually a sign of not enough water getting into the icemaker then it cycles too fast and harvests hollow cubes.

when the hollow cubes fall into your bucket they bust and put water in with your cubes freezing them together. so by solving your water supply problem you'll solve most of your icemaking issues..