Scotsman Ice CU50 service manual Service Diagnosis, Problem Likely Cause Probable Solution

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CU50

Service Manual

Service Diagnosis

No Ice

Problem

Likely Cause

Probable Solution

No power to unit

Power disconnected

Check breaker or fuse. Reset or

replace, restart and check

 

 

No power to controller

Transformer open

Replace transformer

Shut down on maximum

 

 

water fill time - water light

Water shut off

Restore water supply

flashing

 

 

 

Water leak

Check curtain, sump

 

Dirty condenser

Clean condenser

 

Restricted location, intake air too

Eliminate restriction, have machine

 

hot or blocked

moved

 

Evaporator thermistor not sensing

Check thermistor

 

properly

 

 

Very long freeze cycle

Spray jets dirty

Remove spray platform and clean

spray jets

 

 

 

 

Inlet water valve leaks through

Check inlet water valve

 

during freeze

 

 

 

Low on refrigerant

Check cube formation,

 

 

Check for bleed thru from / missing

 

Connected to hot water

check valve in building water

 

 

supply

 

Spray pump not pumping

Check pump motor

 

Fan motor not turning

Check fan motor, check fan blade,

 

check controller for voltage output

 

 

 

Pump hose disconnected

Check hose

 

 

Add access valve, add refrigerant

 

Very low on refrigerant

as a test. If unit makes ice, find and

 

 

correct leak.

 

 

Check compressor start

Cannot make ice

 

components, check PTCR

 

Compressor not operating

resistance and temperature

 

Check compressor voltage

 

 

 

 

Check compressor windings

 

Hot gas valve leaks through during

Check hot gas valve for hot outlet

 

freeze

during freeze

 

 

Check compressor amp draw, if

 

Compressor inefficient

low and all else is correct, change

 

 

compressor

March 2010

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Contents Table of Contents IntroductionSpecifications Powercord Cabinet LayoutAir flow Installation Overview Water QualityFilters and Treatment Door swing change Installation Notes Installation Water & Drain Drain Pump Model drain installationGravity Drain Installation check list ElectricalInitial Start Up Cube Size Adjustment Cube Size Change TableHarvest Time Adjustment Harvest Time TableControl Settings Automatic water purge enable / disableReset time to clean indicator light Use How to clean the condenser and winterize Condenser cleaningHow to remove scale from the ice making system System Information Electrical SequenceElectrical Components Bin controlWater System Components Controller Maximum Harvest Time minutesPerformance Information Refrigeration System TimeDischarge Pressure Thermistor Values Deg. F · Ohms Deg. F. · OhmsService Diagnosis Problem Likely Cause Probable SolutionMakes excessive noise Removal and Repair Evaporator Thermistor ControllerControl Panel TransformerRemoval and Repair Cabinet Removal CU50 Refrigeration Service

CU50 specifications

The Scotsman Ice CU50 is a compact and efficient undercounter ice maker designed for restaurants, bars, and small commercial spaces that require a reliable supply of ice. Known for its innovative design and user-friendly features, the CU50 can produce up to 65 pounds of clear, gourmet ice cubes daily, making it a perfect choice for establishments with moderate ice demands.

One of the main features of the Scotsman CU50 is its space-saving design. Measuring just 14 inches wide, it fits effortlessly under most countertops, maximizing usable space in tight environments. Despite its compact size, the unit boasts a robust performance, thanks to its advanced ice-making technology. The CU50 utilizes a water-cooled system that enhances the efficiency of ice production while ensuring optimal performance even in warmer conditions.

The CU50 generates ice in the form of crystal-clear cubes, which not only look appealing in drinks but also melt slowly, reducing dilution and maintaining beverage quality. The ice produced is perfect for a variety of uses, from cocktails to soft drinks, providing an upscale experience for patrons.

One of the standout characteristics of the Scotsman CU50 is its user-friendly interface. The unit features a simple control panel that allows users to easily adjust settings and monitor ice production. Additionally, it comes equipped with a self-cleaning feature, which simplifies maintenance and ensures that the machine operates efficiently over time.

The Scotsman CU50 is also designed with energy efficiency in mind. It is ENERGY STAR certified, which means it meets strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. This not only helps reduce operating costs but also minimizes environmental impact.

Another noteworthy aspect of the CU50 is its durable construction. Built with stainless steel and high-quality components, it is designed to withstand the rigors of daily use in a commercial setting. Its rugged design ensures a long lifespan, making it a smart investment for business owners.

In summary, the Scotsman Ice CU50 is an ideal solution for establishments requiring reliable ice production in a compact footprint. With its advanced technology, easy-to-use features, and durable construction, it delivers high-quality ice while ensuring efficiency and ease of maintenance. Whether you are running a busy bar or a cozy café, the CU50 is equipped to meet your ice needs with style and reliability.