Cme256 scotsman ice machine

Ok did you damage the bin thermostat cap tube? The bin thermostat is what tells the unit the bin is full if so replace it.

Is it dumping water or is it pouring water back into the ice bin? if it is pouring water back into ice bin than check your water float to make sure it is not calling for water also make sure the water valve is not letting water seep buy you can cut power to machine and if you here water still entering sump tray then replace water valve. if not then turn machine back on check and see it the water full light is on if so and water is still entering sump tray then replace float switch. If water full light is not on and the sump tray is full of water than remove the water sensor and clean or replace it.

Remove and clean or replace the bin control sensors ( set of two ) part number 11-0540-21. Most of the time you can remove them and clean the little lights and this will do.

is your bin line and dump line tied together if so it could be just ice melting. If not can you here water filling up constantly while machine is off? if so is it running over sump tray into ice bin. if dump valve was stuck open then machine will not make ice.

Try cleaning the whole water system, then clean the condensor.

change the board and eyes at the same time.

Making good ice. Could be cube size control. Could be a weak compressor. Also these machines are household and meant to run in air conditioned space.

I see you already said you bin sensor light was on. The drop door has a metal tab that waves over a sensor as it opens, if that part when it closes does not tell the board that door is shut the the board thinks the bin is full. I know you already know that but until I can talk to Scotsman on the phone or review their service manual for your model. One good thing about Scotsman is they are very helpful to their customers. Unless the machine is obsolete.

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.

Remove all molex connections and check for corrosion. Clean the connections and retry.

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