Service Diagnosis
SYMPTOM
POSSIBLE CAUSE
SUGGESTED CORRECTION
Unit will not run
Blown fuse
Replace fuse & check for cause of blown fuse.
Main switch in OFF position
Turn switch to ON position
Bin thermostat set improperly
Adjust rotating its setting screw
Loose electrical connections
Check wiring
Red Alarm light ON
Too Hi Condensing
Temperature
Reset the machine (Push & hold the Reset
Button for 5 seconds) and check for reason why
Red Alarm light Blinking
Twice
Condenser sensor out of order
Replace it and repeat
Cubes too small
Cube size control set improperly
Check and adjust for proper operation.
Capillary tube partially restricted
Recover charge, add new gas & drier, after
evacuating system with vacuum pump.
Shortage of water
See remedies for shortage of water.
Cloudy cubes
Shortage of water
See remedies for shortage of water.
Dirty water supply
Use water softener or water filter.
Accumulated impurities
Use SCOTSMAN Ice Machine scale remover.
Irregular cubes size & some
cloudy
Some jets plugged
Remove jet cover and clean.
Shortage of water
See shortage of water.
Unit not leveled
Level as required.
Poor pumping
Check and/or replace the water pump.
Cubes too large
Cube size control set improperly
Check and adjust for proper operation.
Decreased ice capacity
Inefficient compressor
Replace.
Leaky water valve
Repair or replace.
Non-condensable gas in system
Purge the system.
Poor air circulation or excessive
hot location
Relocate the unit or provide for more ventilation.
Overcharge of refrigerant
Correct the charge.
Capillary tube partially restricted
Recover charge, add new gas & drier, after
evacuating system with vacuum pump.
Undercharge of refrigerant
Charge to data plate indication.
Discharge head pressure too
high
See incorrect discharge pressure.
Clogged air filter
Clean or replace.
Shortage of water.
Water spilling out through
curtain
Check or replace curtain.
Water solenoid valve not
opening
Replace valve.
Water leak in sump area
Locate and repair.
Water flow control plugged
Remove and clean.
CU0515
April 2007
Page 11