I'm a newbie to repairs on my fridge too and I'm here to get information similar to yours, but it would seem that after reading my book, hollow, small or otherwise deformed cubes come from a poor or under-pressurized water supply. Has anyone messed with the tap that supplies your fridge with water? Have you tried removing the filter and running it without one until you can get a replacement (according to the manual the dispenser will work without the filter installed)... they're just a few suggestions, but the cycling thing is prolly an important dodad to be investigated
