Scotsman CU0415 - Manual (Page 22)

August 2013
Page 21
Service Manual for Models CU0415, CU0715 and CU0920
Service Diagnosis
Problem Possible Cause Probable Correction
No ice No water to ice machine Check water filters, check water pressure.
Pressure lower than 10 psi flowing may not
fill reservoir enough.
No ice, nothing operating No power to ice machine Check power, restore if needed.
Open contacts in bin thermostat Check cabinet temperature, thermostat will
be open if cabinet is too cold. Advise user
to operate unit in proper conditions.
Check bin thermostat contacts, if open
at bin temperature above 45 degrees F.,
replace thermostat
Master switch in OFF position Move switch to ON
Transformer failure Check transformer output voltage, must be
12 volts at J1 - J2 of controller. If correct
line voltage is supplied but output is too low,
replace transformer.
Controller failure, some lights
visible
Check controller, use self test on prior
page.
Controller failure, 12 volts to it, no
lights visible
Replace controller
No ice, compressor and fan on,
pump not spraying water
No or low water in reservoir Check water filters, check water pressure.
Pressure lower than 10 psi flowing may not
fill reservoir enough.
Check inlet water solenoid valve for proper
operation
Check drain plug for leaks, correct as
needed.
Pump hose disconnected Check hose at spray platform and pump
Pump motor not working Check voltage to pump. If none and blue
freeze mode light is ON, wait 30 seconds. If
still none, replace controller.
Pump motor overheated Check cabinet temperature, if too hot
relocate unit. If not, replace pump.
Voltage too high.
Pump jammed, check inlet for debris,
remove and retry.
Pump failed, replace pump
No ice, pump spraying, fan motor
and compressor off
Master switch in Wash position Move switch to ON position
No ice, pump spraying, compressor
on, fan motor not turning
Fan motor open, no power or stuck Check blade for free rotation - correct by
clearing debris jamming blade or replace
motor if blade is not jammed