Water doesn;t stop

If your Scotsman CM3 656 ice machine is not harvesting ice automatically and water continues to run unless you turn it off, there could be several possible causes. Here are a few things you can check:

1. Check the water level sensor: The water level sensor is responsible for detecting the level of water in the sump and controlling the fill and harvest cycles. If the sensor is faulty, it could cause the ice machine to not harvest ice automatically. Check the sensor for any damage or debris, and clean or replace it if necessary.
2. Check the water inlet valve: The water inlet valve controls the flow of water into the ice machine. If the valve is stuck open, it could cause water to continue to run into the machine. Check the valve for any damage or debris, and replace it if necessary.
3. Check the temperature sensors: The ice machine has temperature sensors that monitor the temperature of the evaporator plate and control the harvest cycle. If the sensors are faulty, it could cause the machine to not harvest ice automatically. Check the sensors for any damage or debris, and replace them if necessary.
4. Check the control board: The control board is the brain of the ice machine and controls all of its functions. If the board is faulty, it could cause the machine to not harvest ice automatically or to continue to run water. Check the board for any damage or corrosion, and replace it if necessary.

It is unlikely that a bad well pump would cause these symptoms, as the water is still running into the machine. However, if you suspect there is an issue with your water supply, you should check your water pressure and flow rate to make sure they are within the manufacturer's recommended specifications.

Have a look at the side of the evaporator; there is a probe (thermistor) attached to it that tells the control board when to initiate the harvest cycle. make sure it's clean and attached properly and doesn't need replacing. If hitting the float switch initiates the harvest cycle it sounds like you have a blocked/ scaled water tube or switch housing. take off the bottom of the switch assembly (black rubber bit) and clean through to the water chamber. run a cycle of descaler before trying again.

OK is the bin full of ice to where the ice stops making ? and is the water running over into the ice bin. If this is whats happening then cut the machine off, If water is still coming into sump tray then pull the water inlet valve and replace it. If the water stops when you shut the machine off then check the water float or sensor since i don't know what model you have, If float then replace it , if probe sensor then replace it. Now if there is no water running over into ice bin during freeze cycle then nothing is wrong ice machines use a lot of water every time it go's into a harvest it dumps the water in the sump tray.

Yes replace the timer

Usually a condition of low water in the tank. Other condition is the float switch is set wrong. Could have clogged water filters causing low water condition.

The problem could be a series of things beginning with ambient temperatures too high, fan not working properly, if water cooled there could be a problem with that also. As a technician I would first look over the condenser and make sure air flow is proper and then attach my gauges to see the suction and discharge pressures. I have found many restaurants that keep their ice machines in the hot kitchen where it creates high ambient temperatures and allows grease from the grill to collect on the condenser blocking air flow. Yes under charged is possible or over charged but the best and most effective route is to call a Scotsman Certified Technician. I have worked on Scotsman's and they are very tricky to fix unless you know the process of event. If water is not pre-filtered there is a chance that the water control valve may be stuck open allowing warm water to continue flowing causing these symptoms. Here Is a=> Scotsman CME250 Ice Machine User Manual If unable to find these simple checks above or from the manual and still having problems it will need to be time to call a Technician. If you do not have Adobe Reader Click Here=> Adobe Reader X (10.1.0) Tell me what you find and please don't rate me if I was unable to solve this from here. I am here to help you up and to the point of calling Scotsman for addition help. Thanks, Sea Breeze

I would not change the pump. If it runs for 3-5 minutes and stops, it has to be a control. The control board runs the freeze cycle for the first 5 minutes. This prevent "Short Cycling" of the freeze cycle. The board looks at the float after the first 5 minutes for the proper water level but should not effect the pump. If the pump does not run in the wash mode, check out the "Power/ Wash" switch. I would start there before I go spending hundreds on pump motor or control board. You may be able to get by on a $20 fix! Do this and get back to me. We will get it going.

Good Luck

If water is standing in the bin the drain is clogged. If water is raining down into the bin, Machine may not be level or the drain on the ice machine maybe partially clogged. If machine freezes up water will rain into bin too. Water fills ice machine while in harvest and continues to fill until ice machine`s suction reaches 49 degrees and the defrost timer times out.(usually 1-3 minutes after suction line reaches 49 degrees)

seems that its low on water or float switch is bad. try to clean float

the water pome geting to hot and not raning