Scotsman SLC300 - Manual (Page 20)

SYMPTOM POSSIBLE CAUSE PROBABLE FIX
No ice compressor is operating No cooling due to low refrigerant
charge Locate leak, recover remaining
refrigerant, replace dryer,
evacuate and weigh in nameplate
charge.
Ice is made, but not harvested. Ice size thermostat contacts do
not switch position Ice not made near thermostat
probe due to water distributor
holes restricted. Clean water
distributor pan.
Thermostat defective, replace it
Ice will not slide down ice rack
due to minerals on rack. Clean machine with ice machine
cleaner.
Ice will not slide down ice rack
due to ice rack out of position Reposition ice rack
Ice will not slide down ice rack
due to bent ice rack Replace ice rack
Lack of heat during harvest cycle
due to unit in air temp. less than
55
0
F.
Warm up air or move machine.
Lack of heat during harvest due to
water flowing thru water cooled
condenser Replace water regulating valve
Lack of heat during harvest due to
lack of refrigerant Check low side pressure during
harvest. If low either the charge is
low or the hot gas valve does not
open fully. If charge is the
problem, locate leak, recover
remaining refrigerant, repair leak,
replace drier, evacuate and weigh
in nameplate charge.
Lack of heat during harvest due to
hot gas valve not opening fully. Check low side pressure during
harvest. If low either the charge is
low or the hot gas valve does not
open fully.
Ice does not slide down face of
evaporator due to minerals on
evaporator surface Clean water system with ice
machine cleaner
Harvest cycle too short due to
harvest termination thermostat
opens at too low a temperature. Replace harvest termination
thermostat
Service Diagnosis:
SLC300
January 1993
Page 20