I have a Scotsman SCN60 nugget icemaker and when I add cleaning solution to reservoir it just stays there

gearbox in my scotsman nu130 striped gear. scotsman dose not sell the gear by its self thext me if you need a solution. 8064385551

You might be luckier finding a broken Scotsman where the ice maker was working but something else failed.

Also, check to see if other people have reported similar faults and difficulty locating spares. It may be a manufacturing fault and that should be replaced by the manufacturer at their expense. You may be able to join a class action suit to get this repaired.

The float system in a Scotsman SCN60 ice maker is designed to prevent the machine from overfilling with water. The float is a buoyant device that rides on top of the water in the ice maker's reservoir. When the water level reaches a certain point, the float will activate a switch that stops the flow of water into the machine.
To fix the float system on a Scotsman SCN60 ice maker, you will need to follow these steps:

1. Unplug the ice maker from the power source.
2. Locate the float system, which is typically located near the bottom of the ice maker's reservoir.
3. Inspect the float and the switch for any signs of damage or wear. The float should move freely up and down and the switch should activate smoothly.
4. Clean the float and the switch with a damp cloth.
5. Make sure that the float is not stuck and that the switch is properly adjusted.
6. Check the water level in the reservoir and make sure that it is not too high.
7. Plug the ice maker back in and test the float system by adding water to the reservoir.
8. If the float system is still not working correctly, it may be necessary to replace the float or the switch.

If you are not familiar with electrical appliances or if you are unsure of how to fix the float system, it is highly recommended to call a qualified technician to diagnose the issue and fix it.

Did you clean the machine? When you went through the cleaning steps it should have cleared the clean light. I will tell you what to push first Remove the front cover. If the machine is operating then push and release the harvest button. When the machine completes the Harvest cycle it will stop. Push and release the OFF button. Push and release the clean button. The yellow clean light will blink and display will show C. The machine will drain the reservoir and refill it. Go into the next step when the reservoir has filled. Allow the the ice machine to circulate water for at lest 10 minutes. Normally this is when you would add your cleaning solution but i take it you have already cleaned the machine. Now push and release the Clean button again. The yellow Clean light will be on continuously and the machine will drain and refill the reservoir repeatedly to purge out the ice machine. Now Allow the drain and refill process to continue for at least 20 minutes. Now Push and release the OFF button. The clean cycle will stop and the display will show 0. Now push and release the on button. This should have cleared the yellow clean light. Now with that out of the way if it did not clear it then you will need to replace the control board. The machine will steel make ice with no problem and you just clean the machine every 6 mounts. The yellow clean light is just to remind you that it is time to clean the system. The board is quite costly.

the fan motor should only run when the compressor is running you can replace the fan motor if you think it is too loud

WHEN WAS THE LAST TIME THE EVAPORATOR WAS DESCALED? WHEN IT GOES INTO HARVSET DOES THE EVAP PLATE THAW OUT OR STAYS FROZEN?

It might be a dirty or damaged ice tray. When in the harvest mode the hot gas will be directed through the tray untill the cubes fall tripping the reset to start the freezing cycle again. If the cubes are sticking because of rust or scale buildup the cubes get "overmelted" causing the "wet cubes".CAREFULLY clean the ice tray . Use vinegar or ice machine cleaner do not use any cleaning pads steel wool or sand paper as this will ruin ice tray. Also make sure icemaker is level both ways. Hope this helps.

Unless they are terrible you can clean the curtains. What you do is put icemaker cleaner in the icemaker and run it through a cycle. I don't know how much the curtains cost.

This is usually an indication that the photo eyes are probably dirty. They "See" across the opening where the ice drops through. If they are dirty, it registers as a fill machine.
A bin stat can cause the same problem.
The eyes and sometimes be a major problem finding them getting to them. On smaller machines like this one, it's hard to get your hands on them.
Good Luck and hope this helps.