Scotsman CU0415 Technical Training Manual page 41

Service Diagnosis
• No ice
– No water, check water filters and supply to unit
– No water, check inlet water solenoid valve
– Nothing operating, check power to unit
– Nothing operating, check bin thermostat
– Nothing operating, check master switch position
– Nothing operating, check transformer
– Nothing operating, power to controller, no lights on it.
• Replace controller.