My first attempt at cleaning a two year old Scotsman CU1526 ice maker using the manual. We have it at our house and this is my first time to descale and sanitize it. I used the Scotsman branded descaling chemical (phosphoric, citric acid).
I did not know where the water level sensor is (appears to be an effort to reach it) so I didn't remove it to clean it. My video on adding the sanitizer (1 oz of bleach in 20 oz of water) didn't save, so I don't have that included, but I reference it in the video.
all in all the Scotsman ice maker is put together very well I recommend it for home use when you have a high ice demand (we have a pool/outdoor kitchen, so the kids and their friends utilize this ice maker a lot).
exercise caution using the descaling agent (acids), especially protect your eyes, and when the machine is running and the lid is off I was careful to watch what wires I was near when the machine was plugged in.