Scotsman Prodigy Plus D Series Service Manual - Manual (Page 41)

N0422, F0522, N0622, F0822, N0922, F1222, N1322, F1522
Air, Water or Remote Service Manual
December 2014
Page 41
Symptom Probable Cause Possible Correction
No ice No power If power light is out and there
is power to the unit, check
transformer.
Code 3: No water Restore water, check filters, water
level and sensor
Status light is off Push and release ON switch
Code 1: No ice sensed Check for ice flow down chute. if
very slow or no ice being made,
check for refrigeration system
failure
Check auger motor for power, if no
power, check controller component
indicator light. If there is power to
the motor, check motor windings
Code 2: Auger motor draws too
many amps, controller shut unit off.
Check for damage to gear reducer
or auger bearings.
Bin Eyes Blocked light is On Ice is in the chute.
No ice in the chute. Check position
of sensors, check sensors for scale
build up
Code 4: Refrigeration system over
or under pressure
Check water flow to condenser;
check for proper flow of water
into evaporator; check refrigerant
charge
Code 4: Chute thermostat opened Unit overfilled, check photo eye
system
Everything is in operation, but no
refrigeration effect
Check water regulating valve
Check TXV superheat
Check refrigerant charge
Optional bin thermostat is open Check thermostat or jumper wire
on blue wires to #5 & #6
Optional ultrasonic system set too
low
Adjust selector switch to a higher
position
Optional ultrasonic system senses
false bin full
Check sensor for proper
installation and operation
Low ice making capacity Scale build up Remove scale from evaporator and
water system
Restricted water to evaporator Check for air bubble in hose,
change reservoir if found
High discharge pressure Check water regulating valve
Expansion valve superheat
incorrect
Check superheat
Service Diagnosis - Water Cooled