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CU0515
Ser vice Di ag no sis
SYMPTOM
Unit will not run
Red Alarm light ON
Red Alarm light Blinking
Twice
Cubes too small
Cloudy cubes
Irregular cubes size & some
cloudy
Cubes too large
Decreased ice capacity
Shortage of water.
POSSIBLE CAUSE
Blown fuse
Main switch in OFF position
Bin thermostat set improperly
Loose electrical connections
Too Hi Condensing
Temperature
Condenser sensor out of order
Cube size control set improperly
Capillary tube partially restricted
Shortage of water
Shortage of water
Dirty water supply
Accumulated impurities
Some jets plugged
Shortage of water
Unit not leveled
Poor pumping
Cube size control set improperly
Inefficient compressor
Leaky water valve
Non-condensable gas in system
Poor air circulation or excessive
hot location
Overcharge of refrigerant
Capillary tube partially restricted
Undercharge of refrigerant
Discharge head pressure too
high
Clogged air filter
Water spilling out through
curtain
Water solenoid valve not
opening
Water leak in sump area
Water flow control plugged
April 2007
Page 11
SUGGESTED CORRECTION
Replace fuse & check for cause of blown fuse.
Turn switch to ON position
Adjust rotating its setting screw
Check wiring
Reset the machine (Push & hold the Reset
Button for 5 seconds) and check for reason why
Replace it and repeat
Check and adjust for proper operation.
Recover charge, add new gas & drier, after
evacuating system with vacuum pump.
See remedies for shortage of water.
See remedies for shortage of water.
Use water softener or water filter.
Use SCOTSMAN Ice Machine scale remover.
Remove jet cover and clean.
See shortage of water.
Level as required.
Check and/or replace the water pump.
Check and adjust for proper operation.
Replace.
Repair or replace.
Purge the system.
Relocate the unit or provide for more ventilation.
Correct the charge.
Recover charge, add new gas & drier, after
evacuating system with vacuum pump.
Charge to data plate indication.
See incorrect discharge pressure.
Clean or replace.
Check or replace curtain.
Replace valve.
Locate and repair.
Remove and clean.
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