It freezes a little but not enough to make ice cubes

clean and dry the sensor and restart the machine. Adjust the thickness until the cubes make a plate but break apart when they fall in the storage bin

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.

the problem is an unlevel icemaker to prove this do you see little droplets of water freezing from the icemaker or a remote possibilty is do you have to an R/O system and have you change the filter if unit has one.

water freezes at 32 degrees. ice cream needs to be below 0 degrees to remain firm. your freezer is nort cold enough. ;)

I would first try turning the temperature down on your freezer before considering buying any parts. Your ice is freezing before it is reaching the position to dump in the bin. Also, if you have any items packed around the area where you ice maker is, try to free up a little space around it. If that does not work I would call the manufacturer, they will be more than happy to walk you through any problems you may be having with there products.

sounds as though you freezer either isnt cold enough or the cubes havnt got enough freeze time before harvest

Ice cubes freeze from the outside, so the center of the cube is the last to freeze. Ice is pure water, only H 2 O, so as the ice cube freezes, all of the dissolved minerals are pushed to the center. Near the end of the freezing, there isn't much water left in the center of the cube, so these minerals become very concentrated, and they form the "white stuff" – the technical name is precipitate. The hardness minerals that cause the "white stuff" are not toxic.

If it is leaking water in the freezer it will more than likely freeze amongst the ice cubes causing a block of ice.

It is more than likely leaking at the rear of the unit, near the valve or fill tube for the ice, this will run up the rear wall of the unit.

The thickness probe should be approximatly 1/4 inch off of the evaporator.Sounds like you might have loose grids on the evaporator.turn the unit off and remove the curtain.use a flash light and inspect the grids.There should not be space in between the joints,if there is the ice will freeze behind the grids and not properly release when in harvest. Also gently pull at the grids,if they pull towards you or wiggle then they are separating. I have removed one of the grids and had the unit continue to run for sometime until the evaporator could be replaced.The plating being spotty causes release issues as well.Finally check the level of the machine,front to back and side to side.Not being level will also cause release problems

hoshizakis make ice cubes depending on the amount of water in the sump. if you are starving for water the sump only partially fills in the fill time allowed . then it makes ice until the water is used up and the float switch drops and the cubes are little slices. you can adjust the size of cubes you want by raising or lowering the float assembley in the sump. if its to low the water rises and the float rises and tells the machine you happy with little slices. if you raise it up to max height you can max fill before float satisfies and max ice cubes. But if you are starving for water the time to fill will run out before the sump fills and cubes will be small no matter where you set the floats assembly. water starving can be due to crud in the water line, to small a water line, most hoshizes take a half inch line ,or a clogged water filter. if you suspect a filter take it out . if fill is drastically improved you need a new filter. be aware that starving for water on a hoshizaki will eventually lead to broken evap plates. big time expensive.good luck. i put in a new machine ruined by starving water and the new one made little chips of ice real quick. i finally pulled the filter out and voila! big cubes and great production.