SYMPTOM
POSSIBLE CAUSE
SUGGESTED CORRECTION
Unit will not run
Blown fuse or breaker
Replace fuse & check for cause
of blown fuse, reset breaker.
Compressor cycles intermittently Low voltage
Check voltage at the supply to
the building.
Check circuit for overloading.
Dirty condenser
Clean the condenser
Air circulation blocked around
unit
Allow sufficient air around unit
Non condensable gas in system
Evacuate and recharge with
nameplate charge
Cubes too small
Cube size control set too warm
Check and adjust for proper
operation
Partially restricted cap tube
Blow charge, evacuate with new
drier, weigh in nameplate charge
Moisture in system
Same as above
Overcharged
Same as above
Undercharged
Same as above, look for a leak.
Cloudy cubes
Spray nozzles plugged
Clean
Needs cleaning
Clean with Scotsman Ice
Machine Cleaner
Irregular size cubes, some
cloudy
Some jets plugged
Clean jets
Shortage of water
Check water supply
Cubes too large
Cube size control set improperly
Check and adjust for proper
operation
Decreased ice capacity
Inefficient compressor
Replace
Low Ice Capacity
Leaky inlet water
Replace valve
Non-condensable gas in the
system
Replace refrigerant
High Head Pressure
Dirty condenser,
Worn fan motor,
High air temperature
High water temperature
High air temp
Relocate machine or water line.
Overcharge
Replace the refrigerant
Restricted system
Replace the drier and refrigerant
SERVICE DIAGNOSIS
CS60
January 1995
Page 14
