Scotsman Prodigy Plus A Series User manual

Service Manual for
Remote Low Side Modular Flake Ice Machine
Prodigy Plus A Series Model FS2330L

FS2330L
Remote Low Side Service Manual
December 2022
Page 1
Introduction
This ice machine is the result of years of experience
with aked and nugget ice machines. The latest in
electronics has been coupled with the time tested
Scotsman aked ice system to provide reliable ice
making and the features needed by customers.
The features include simple conductivity water level
sensing, evaporator clearing at shut down, photo-eye
sensing bin control and the ability to add options.
Contents
Installation: ..................................................................... Page2
Location: ....................................................................... Page3
Cabinet Layout .................................................................. Page4
Unpacking & Install Prep ........................................................... Page5
Water ......................................................................... Page6
Electrical ....................................................................... Page7
Refrigeration .................................................................... Page8
Final Check List .................................................................. Page9
Initial Start Up and Maintenance ..................................................... Page10
Maintenance: Scale Removal and Sanitation ........................................... Page11
Maintenance: Sensors ............................................................. Page12
Controller ....................................................................... Page13
Component Indicator Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page14
AutoAlert and Display Code ........................................................ Page15
Remote Refrigeration with Condensing Unit or Rack ..................................... Page16
Electrical Component Details ....................................................... Page17
Sequence of Operation ............................................................ Page18
Electrical Sequence ............................................................... Page19
Water System ................................................................... Page20
How Ice Is Made ................................................................. Page21
Options ........................................................................ Page22
Service Diagnosis ................................................................ Page23
Repair Procedures: Bearing And Extruder ............................................. Page24
Auger and Evaporator Inspection .................................................... Page26
Water Seal ...................................................................... Page27
Repair Procedures: The Gear Reducer ................................................ Page28
Repair Procedures: Replace the Evaporator ............................................ Page29

December 2022
Page 2
FS2330L
Remote Low Side Service Manual
Installation:
This machine is designed to be used indoors, in a
controlled environment. Operation outside the limits
listed here will void the warranty.
Air temperature limits
Minimum Maximum
Ice maker 50oF. 100oF.
Remote
condenser
-20oF. 120oF.
Water temperature limits
Minimum Maximum
All models 40oF. 100oF.
Water pressure limits (potable)
Maximum Minimum
All models 20 psi 80 psi
Water pressure limit to water cooled condenser is 150
PSI
Voltage limits
Minimum Maximum
208-230 60 Hz 198 253
Minimum conductivity (RO water)
• 10 microSiemens / CM
Water Quality (ice making circuit)
• Potable
The quality of the water supplied to the ice machine
will have an impact on the time between cleanings
and ultimately on the life of the product. Water can
contain impurities either in suspension or in solution.
Suspended solids can be ltered out. In solution
or dissolved solids cannot be ltered, they must be
diluted or treated. Water lters are recommended
to remove suspended solids. Some lters have
treatment in them for dissolved solids.
Check with a water treatment service for a
recommendation.
RO water. This machine can be supplied with Reverse
Osmosis water, but the water conductivity must be no
less than 10 microSiemens/cm.
Potential for Airborne Contamination
Installing an ice machine near a source of yeast
or similar material can result in the need for more
frequent sanitation cleanings due to the tendency of
these materials to contaminate the machine.
Most water lters remove chlorine from the water
supply to the machine which contributes to this
situation. Testing has shown that using a lter that
does not remove chlorine, such as the Scotsman
Aqua Patrol, will greatly improve this situation.
Warranty Information
The warranty statement for this product is provided
separately from this manual. Refer to it for applicable
coverage. In general warranty covers defects
in material or workmanship. It does not cover
maintenance, corrections to installations, or situations
when the machine is operated in circumstances that
exceed the limitations printed above.

FS2330L
Remote Low Side Service Manual
December 2022
Page 3
Location:
While the machine will operate satisfactorily within the
air and water temperature limits, it will operate more
e󰀩ciently when those temperatures are nearer the
lower limits. Avoid locations that are hot, dusty, greasy
or conned.
Options
Ice is made until it lls the bin enough to block an
infrared light beam inside the base of the machine. A
eld installed kit is available to adjust the maintained
ice level lower. The kit number is KVS.
The standard controller has excellent diagnostic
capabilities and communicates to the user through the
AutoAlert light panel, seen through the front panel.
Field installed kits are available that can log data and
provide additional information when the front panel is
removed. That kit number is KSBU. A similar kit adds
network connectivity, and its number is KSBU-N.
Bin compatibility
All models have the same footprint: 30 inches wide
by 24 inches deep. Conrm available space when
replacing a prior model.
Bin & adapter list:
• B330P or B530P or B530S – Direct t, no adapter
needed
• B842S – KBT22
• B948S – KBT28
• BH1100, BH1300 and BH1600 – upright bins
include ller panels to accommodate a single 30”
wide ice machine. No adapter is needed.
• BH1300 and BH1600 – KBT54 for two 30” units side
by side
Dispenser compatibility
Only nugget ice models may be used with ice
dispensers. Flaked ice is not dispensable.
• ID200 – use KBT44 and KNUGDIV and KVS
• ID250 – use KBT44 and KNUGDIV and KVS
See sales literature for other brand model ice and
beverage dispenser applications.
Other Bins & Applications
Note the drop zone and ultrasonic sensor locations in
the illustrations on the next pages.
Scotsman ice systems are designed and
manufactured with the highest regard for safety and
performance.
Scotsman assumes no liability of responsibility of
any kind for products manufactured by Scotsman
that have been altered in any way, including the use
of any part and/or other components not specically
approved by Scotsman.
Scotsman reserves the right to make design changes
and/or improvements at any time. Specications and
design are subject to change without notice.
Line Set
NRTE45 is a non-precharged tubing kit that contains
a 45 foot 3/8” liquid line and a 45 foot 5/8” suction line.
Tubes are supplied nitrogen charged and capped.

December 2022
Page 4
FS2330L
Remote Low Side Service Manual
Cabinet Layout
76.2
30.00
73.8
29.06
78
30.70
0.3 .12
CHUTE
EXTENTION
4
1.59
4.7
1.85
62.6
24.64
32.3
12.71
6.4
2.50
.88
ELECTRICAL
CONNECTION
55.7
21.92
7.5
2.94
38.6
15.20
3.9
1.52
3/8" FLARE MACHINE WATER INLET
3/4" FPT MACHINE WATER DRAIN
REMOTE COND. LIQUID LINE 3/8" COPPER BRAZE JOINT
REMOTE COND. DISCHARGE LINE 1/2" COPPER (REMOTE ONLY) BRAZE JOINT
33
13.00
10.2 4.00
TYP. (2)
4.2
1.65
19.3 7.60
TYP (2)
29.3
11.55
29.1
11.46
22.8 8.96
32.2
12.68
2.88
OPTIONAL BIN STAT OR ULTRA SONIC BIN LEVEL SENSOR
ICE DROP
OPENING
ICE DROP
OPENING
61
24.00
0.6 .23
REMOTE LOW SIDE
BACK VIEW
FRONT VIEW
RIGHT SIDE VIEW
PLAN VIEW

FS2330L
Remote Low Side Service Manual
December 2022
Page 5
Unpacking & Install Prep
Remove the carton from the skid. Check for hidden
freight damage, notify the carrier immediately if any is
found. Retain the carton for the carrier’s inspection.
The machine is not bolted to the skid. If strapped
remove the strap.
Place on Bin or Dispenser
If reusing an existing bin, be sure that the bin is
in good shape and that the gasket tape on the
top is not torn up. Water leaks, not covered by
warranty, could result from a poor sealing surface. If
installing a remote or a remote low side, a new bin
is recommended due to the high cost to the user of
replacing an old bin when a remote system is on top.
Install the correct adapter, following the directions
supplied with that adapter.
Hoist the machine onto the adapter.
Note: The machine is heavy! Use of a mechanical lift
is recommended.
Position the machine on the bin or adapter. Secure
with straps from the hardware bag packed with the
machine, or those supplied with the adapter.
Remove any plastic covering the stainless steel
panels.
Remove any packaging, such as tape or foam blocks,
that may be near the gear reducer or ice chute.
Level the bin and ice machine front to back and left to
right by using the bin leg levelers.
Control Panel Door
The door can be moved to allow access to the on and
o󰀨 switches.
Panel Removal
1. Locate and loosen the two screws at the bottom of
the front panel.
2. Pull the front panel out at the bottom until it clears.
3. Lower the front panel down and o󰀨 the machine.
4. Remove two screws at the front of the top panel.
Lift up the front of the top panel, push the top panel
back an inch, then lift to remove.
5. Locate and loosen the screw holding each side
panel to the base. Left side panel also has a screw
holding it to the control box.
6. Pull the side panel forward to release it from the
back panel.

December 2022
Page 6
FS2330L
Remote Low Side Service Manual
Water
Water Supply
The water supply for ice making must be cold, potable
water. There is a single 3/8” male are potable water
connection on the back panel. Water cooled models
also have a 3/8” FPT inlet connection for the water
cooled condenser. Chilled water can also be used for
this connection.
Backow
The design of the oat valve and reservoir prevents
potable water backow by means of a 1" air gap
between the reservoir's maximum water level and the
oat valve water inlet orice.
Drain
There is one 3/4” FPT condensate drain tting at the
back of the cabinet. Water cooled models also have
a 1/2” FPT discharge drain connection on the back
panel.
Attach Tubing
Connect the potable water supply to the potable water
tting, 3/8” OD copper tubing or the equivalent is
recommended.
Water ltration is recommended. If there is an existing
lter, change the cartridge.
Drains - use rigid tubing: Connect the drain tube to the
condensate drain tting. Vent the drain.
Do not tee ice machine drains into the drain tube
from the ice storage bin or dispenser. Back-ups
could contaminate and / or melt the ice in the bin or
dispenser. Be sure to vent the bin drain.
Follow all local and national codes for tubing, traps
and air gaps.
Water Inlet
Connection
Drain
Connection
Condensate
Drain Tube
Building Drain

FS2330L
Remote Low Side Service Manual
December 2022
Page 7
Electrical
The machine includes a power cord, connect
to the proper power supply. A separate circuit is
recommended to avoid unintended shut downs.
If a dedicated condensing unit is connected to this
machine, it will have a separate power supply.
Do not use an extension cord.
Follow all local and national codes.
Model Dimensions
w" x d" x h"
Voltage
Volts/Hz/Phase
Min Circuit Ampacity Max Fuse Size
(cord connected)
FS2330L-32A 30 x 24 x 29 208-230/60/1 2.8 15
To Remote Condenser
Refrigeration
connections
Brazing required
Refrigeration
Tubing
*reference page 5 for more detailed layout of rear panel connections

December 2022
Page 8
FS2330L
Remote Low Side Service Manual
Refrigeration
BTUH Capacity Requirements
Model BTUH
FS2330L-32A 12,000
Remote low side models require connection to a
dedicated condensing unit or a rack system.
Recommended Tubing
• Suction Line: 5/8" OD
• Liquid Line: 3/8" OD
Distance limits
• Maximum distance between dedicated condensing
unit and head: 75 feet.
• Maximum rise from the ice machine to the
condenser is 35 physical feet
Note: Elevations greater than 20 feet require
installation of a suction line trap at the 10 foot mark.
• Maximum drop from the ice machine to the
condenser is 15 physical feet
Line Routing
• Do not route a line set that rises, then falls, then
rises.
• Do not route a line set that falls, then rises, then
falls.
Roof Attachment
Install and attach the remote condensing unit to the
roof of the building, using the methods and practices
of construction that conform to the local building
codes, including having a roong contractor secure
the condenser to the roof.
Connections
The liquid and suction ttings on the back of the
cabinet are stubs. The liquid line size is 3/8" OD. The
suction line size is 5/8" OD.
1. On R-404A models recover the R404A holding
charge
2. Cut the stubs o󰀨.
3. Braze line set tubing to each tting. Sweep with
dry nitrogen while brazing.
4. Dedicated condensing unit: Evacuate complete
system to 50 microns.
5. Open the ball valves.
Rack: The skills of a refrigeration technician are
required to connect the ice machine to the building’s
refrigeration system.
Notes:
• R-404A models: 10 ounces of R-404A refrigerant
is in the system as a holding charge.
• Be sure the liquid connection is NOT in series with
another liquid line valve.
• Local Codes must be observed.

FS2330L
Remote Low Side Service Manual
December 2022
Page 9
Final Check List
After connections:
1. Wash out the bin. If desired, the interior of the bin
could be sanitized.
2. Locate the ice scoop (if supplied) and have it
available for use when needed.
3. Remote only: Switch on the electrical power to
warm up the compressor. Do not start the machine
for 4 hours.
Final Check List:
1. Is the unit located indoors in a controlled
environment?
2. Has the correct electrical power been supplied to
the machine?
3. Have all the water supply connections been
made?
4. Have all the drain connections been made?
5. Has the unit been leveled?
6. Have all unpacking materials and tape been
removed?
7. Has the protective covering on the exterior panels
been removed?
8. Is the water pressure adequate?
9. Have the drain connections been checked for
leaks?
10. Has the bin interior been wiped clean or sanitized?
11. Have any water lter cartridges been replaced?
12. Have all required kits and adapters been properly
installed?
13. Has the ice machine been properly connected to
the condensing unit or rack?
Control and Machine Operation
Once started, the ice machine will automatically make
ice until the bin or dispenser is full of ice. When ice
level drops, the ice machine will resume making ice.
Caution: Do not place anything on top of the ice
machine, including the ice scoop. Debris and moisture
from objects on top of the machine can work their way
into the cabinet and cause serious damage. Damage
caused by foreign material is not covered by warranty.
There are four indicator lights at the front of the
machine that provide information on the condition of
the machine: Power, Status, Water, De-scale &
Sanitize.
Power
Status
No Water
Time to Clean
On
O󰀨
Note: If the De-Scale & Sanitize light is ON, following
the cleaning process will clear the light for another
cleaning time internal.
Two button switches are at the front – On and O󰀨. To
switch the machine OFF, push and release the O󰀨
button. The machine will shut o󰀨 at the end of the next
cycle. To switch the machine ON, push and release
the On button. The machine will go through a start up
process and then resume ice making.
Lower Light and Switch Panel
This user accessible panel provides important
operational information and duplicates the lights and
switches on the controller. It also allows access to the
On and O󰀨 buttons that operate the ice machine.
Sometimes access to the switches should be limited
to prevent unauthorized operation. For that purpose a
xed panel is shipped in the hardware package. The
xed panel cannot be opened.
To install the xed panel:
1. Remove the front panel and remove the bezel.
2. Spread the bezel frame open and remove original
door, insert xed panel into bezel. Be sure it is in
the closed position.
3. Return bezel to panel and install panel on unit.

December 2022
Page 10
FS2330L
Remote Low Side Service Manual
Initial Start Up and Maintenance
Startup
1. Turn the water supply on. Remote models also
open the liquid line valve.
2. Conrm voltage and switch on electrical power.
3. Push and release the On button. The machine will
start in about two minutes.
4. The liquid line valve will open and liquid refrigerant
will ow into the machine. For the units connected
to a dedicated condensing unit, the resulting
increase in suction pressure will start the
condensing unit and the condensing unit will begin
discharging warm air from the remote condenser.
After about 5 minutes, ice will begin to drop into
the bin or dispenser.
5. Check the machine for unusual rattles. Tighten
any loose screws, be sure no wires are rubbing
moving parts. Check for tubes that rub. Check
brazed connections for leaks, retighten as needed.
6. Check suction pressure and adjust the EPR
setting for optimum performance.
Note: As shipped the EPR valve should maintain low
side pressure at about 36 PSIG + or - 2 PSIG.
7. Check superheat and if needed adjust to 12oF, +
or - a few degrees
Note: Machines will operate and make ice at the
factory EPR setting for optimum performance, adjust
the EPR to the settings in the chart below:
Model Number Ice Head EPR
Setting
Superheat
Setting
FS2330L 36 PSIG 12oF, + or - a
few degrees
8. Scan the QR code found behind the front panel
door and complete the warranty registration
online or ll out and mail the included warranty
registration card
9. Notify the user of the maintenance requirements
and whom to call for service.
Maintenance Types
This ice machine needs ve types of maintenance:
• Remote models need their condenser coils
cleaned regularly.
• All models need scale removed from the water
system.
• All models require regular sanitization.
• All models require sensor cleaning.
• All models require a top bearing check.
Maintenance Frequency
Remote air cooled condenser: At least twice a year, or
every time the unit is cleaned
Scale removal. At least twice a year, in some water
conditions it might be every 3 months. The yellow De-
Scale & Sanitize light will switch on after a set period
of time as a reminder. The default time period is 6
months of power up time.
Sanitizing: Every time the scale is removed or as
often as needed to maintain a sanitary unit.
Sensor Cleaning: Every time the scale is removed.
Top bearing check: At least twice a year or every
time the scale is removed. During the course of
normal operation, some material buildup on top of the
bearing is normal and should be wiped away during
maintenance.
Maintenance Specics
Maintenance: Remote air cooled condenser
The condenser ns will occasionally need to be
cleaned of leaves, grease or other dirt. Check the coil
every time the ice machine is cleaned.
Maintenance: Exterior Panels
The front and side panels are durable stainless steel.
Fingerprints, dust and grease will require cleaning
with a good quality stainless steel cleaner
Note: If using a sanitizer or a cleaner that contains
chlorine on the panels, after use be sure to wash the
panels with clean water to remove chlorine residue.
Maintenance: Water lters
If the machine has been connected to water lters,
check the cartridges for the date they were replaced
or for the pressure on the gauge. Change cartridges
if they’ve been installed more than 6 months or if the
pressure drops too much during ice making.

FS2330L
Remote Low Side User Manual
March 2021
Page 11
Maintenance: Scale Removal and Sanitation
Note: Following this procedure will reset the de-scale
and sanitize light.
Preparing to Clean
1. Remove both the front and right panels.
2. Push and release the OFF button.
3. Remove ice from bin or dispenser.
4. Remove the ice chute covers.
5. Remove the water reservoir cover.
6. Turn the water supply to the oat valve o󰀨 by turn-
ing the knob 1/4 turn CCW.
7. Drain the water reservoir and evaporators into a
bucket using the vent tube. Return the vent tube to
it’s original collar bracket.
8. Using a small cup for precise pouring, add hot
(100-120°F) water into the reservoir until water
comes out of the top of the evaporators at the
extruders, about 2qts (varies slightly by model).
9. Let hot water warm evaporators for 2-5 minutes
and then drain the system (refer to step 7).
10. Loosen the thumb screw and raise the water res-
ervoir from the “Make Ice” position to the “Clean”
position.
Ice machine scale remover
contains acids. Acids can
cause burns.
If concentrated cleaner
comes in contact with
skin, ush with water. if
swallowed, do NOT induce
vomiting.
Give large amounts of
water or milk. Call Physician
immediately. Keep out of the
reach of children.
Scale Removal
11. Prepare a solution of 32oz. Scotsman Clear One™
scale remover and 32oz. 95-115 °F. potable water.
12. Using a small cup for precise pouring, add the
scale remover solution into the reservoir until the
solution comes out of top of the evaporators at the
extruders, about 2qts (varies slightly by model).
13. Push and release the Clean button: C is displayed
and the Time to Clean light blinks. The augers will
turn and circulate the scale remover for 30 min-
utes before shutting o󰀨. No ice is made during the
cleaning cycle.
14. Lower the water reservoir back to the “Make Ice”
position. Drain the water reservoir and evaporators
into a bucket using the vent tube.
15. Perform a rinse of the system: turn the water sup-
ply to the oat valve back on and allow the evapo-
rators to ll. Once full, turn the water supply at the
oat valve o󰀨 and drain the system using the vent
tube. Return the vent tube to it’s original collar
bracket.
Sanitize
16. Create a solution of sanitizer. Mix 4oz/118ml of
NuCalgon IMS and 2.5gal/9.5L of (90°F/32°C to
110°F/43°C) potable water to create a 200 ppm
solution.
17. Pour the sanitizing solution into the reservoir.
18. Push and release the On button.
19. Switch the water supply to the ice machine on.
20. Operate the machine for 20 minutes.
21. Push and release the O󰀨 button.
22. Wash the reservoir cover and ice chute covers in
the remaining sanitizing solution.
23. Return the reservoir cover and ice chute covers to
their normal position.
24. Melt or discard all ice made during the sanitizing
process.
25. Wash the inside of the ice storage bin with the
sanitizing solution.
26. Push and release the On button.
27. Return the front panel to its original position and
secure with the original screws

FS2330L
Remote Low Side Service Manual
December 2022
Page 12
FS2330L
Remote Low Side User Manual
Change De-Scale Notication Interval:
This feature is accessible only from standby
(Status Light O󰀨).
1. Press and hold Clean button for 3 seconds.
This starts the Time to Clean Adjustment State and
displays the current time to clean setting.
2. Press the clean button repeatedly to cycle through
the 4 possible settings:
0 (disabled), 4 months, 6 months (default), 1 year
3. Push O󰀨 to conrm the selection.
Maintenance: Sensors
Photo Eyes
The control that senses bin full and empty is a photo-
electric eye, therefore it must be kept clean so it
can “see”. At least twice a year, remove the ice level
sensors from the base of the ice chute, and wipe the
inside clean, as illustrated.
1. Remove front panel.
2. Pull photo eye holders forward to release them.
3. Wipe clean as needed. Do not scratch the photo-
eye portion.
4. Return the eye holders to their normal positions
and return the front panel to its original position.
Note: Eye holders must be mounted properly. They
snap into a centered position and are properly located
when the wires are routed to the back and the left eye
is the one with 2 wires at the connector.
Water Probe
The ice machine senses water by a probe located
near the water reservoir. At least twice a year, the
probe should be wiped clean of mineral build-up.
1. Shut o󰀨 the water supply.
2. Remove front panel.
3. Remove the hose from the water sensor, use a
hose clamp pliers for this.
4. Loosen mounting screw and release the water
sensor from the frame of the unit.
5. Wipe probes clean.
Vent Hole
3/8”
Check Gear Reducer Lubricant
Although there is no normal access to the gear
reducer lubricant, it can be checked without removal
and complete disassembly.
Remove red vented plug from gearbox. Using a
athead screwdriver, check the oil level using the vent
hole between the motor and the freezer. About 3/8” of
oil should be on the tip of the screwdriver blade. Any
more and there may be water in the gear case, any
less and it may be low. The correct oil charge is 14
ounces. See picture to right.

December 2022
Page 13
FS2330L
Remote Low Side Service Manual
Code Description
F. . . . . . . . Freeze Mode
Fflashes . . Freeze Mode is Pending
b. . . . . . . . Bin is Full
C. . . . . . . . Clean Cycle
L. . . . . . . . Board Locked
d. . . . . . . . Test Mode
O. . . . . . . . Off
E. . . . . . . . Self Test Failed
1flashes . . No Ice Sensed, Left - Retrying
1. . . . . . . . No Ice Sensed, Left - Shut Down
2flashes . . Auger Motor High Load, Left - Retrying
2. . . . . . . . Auger Motor High Load, Left - Shut Down
3. . . . . . . . No Water in Reservoir
4. . . . . . . . Refrigeration Pressure too High / Low
5flashes . . No Ice Sensed, Right - Retrying
5. . . . . . . . No Ice Sensed, Right - Shut Down
7flashes . . Auger Motor High Load, Right - Retrying
7. . . . . . . . Auger Motor High Load, Right - Shut Down
8flashes . . No Ice Sensed, Both - Retrying
8. . . . . . . . No Ice Sensed, Both - Shut Down
9flashes . . Auger Motor High Load, Both - Retrying
9. . . . . . . . Auger Motor High Load, Both - Shut Down
Control Operation - See Manual
Water Light On - Restore water supply to
machine.
De-Scale Light On - Clean and sanitize
machine.
Test Mode - Depress Off for 3 seconds,
then depress Clean for 3 seconds
Recall Diagnostic Codes - Depress Off
for 3 seconds. Press Clean repeatedly to
go from most recent to oldest of 10.
Clear Diagnostic Codes - Switch unit off,
depress and hold Clean and Off for 3
seconds.
Reset from Codes 1, 2, 3, 4, 5, 7, 8 or 9 -
Depress Off then Depress On.
Clean
Code
Display
02-5132-01
Component Operation Indicator Lights
Location of Optional
Vari-Smart (KVS)
Location of Optional
Smart-Board
Controller

December 2022
Page 14
FS2330L
Remote Low Side Service Manual
Component Indicator Lights
Control Button Use
Recall diagnostic code:
• Hold o󰀨 button in for 3 seconds. Release.
• Press and release the Clean button to cycle through
each of the last 10 error codes from most recent to
oldest.
Clear diagnostic code:
• Hold Clean and O󰀨 buttons in for 3 seconds to clear
all prior codes.
Reset control:
• Depress and release O󰀨, then depress and release
On
Start Test Mode:
• Hold O󰀨 button in for 3 seconds. Release.
• Hold Clean button in for 3 seconds. Release.
Lock / Unlock control:
• Hold On button in for 3 seconds, keep holding then
press and release O󰀨 twice.
The controller has six lights to indicate component
operation:
Auger Left
• This light is ON when the left auger motor is
operating.
Auger Right
• This light is ON when the right auger motor is
operating.
Bin Eyes Blocked- L
• This light is ON when the left photo-electric ice
sensors have been blocked by ice.
Bin Eyes Blocked - R
• This light is ON when the right photo-electric ice
sensors have been blocked by ice.
Compressor
• This light is ON when the condensing unit the ice
maker is connected to should be operating
Water Present
• This light is ON when the water sensor has water
touching it.
.

FS2330L
Remote Low Side Service Manual
December 2022
Page 15
The controller uses indicator lights to provide the user
with information on Power, Status, Water or Time to
Clean. These are known as the AutoAlert panel.
Additionally a 7 segment display is under the front
panel. It shows operational status or problem codes.
The Power light is on Green anytime the machine is
supplied with electrical power.
The Status light is on Green when the machine has
been switched to the ice making mode. It will also
blink green if the unit has been equipped with an
optional Smart-Board AND the Smart-Board has
detected potential malfunction.
The Water light will blink Red if the water sensor does
not detect water.
The De-Scale / Sanitize light will glow Yellow when
the time to clean timer has reached its set time since
the last cleaning. It also blinks during the rst part of
the cleaning mode
AutoAlert and Display Code
Code Description
F. . . . . . . . Freeze Mode
Fashes . . Freeze Mode is Pending
b. . . . . . . . Bin is Full
C. . . . . . . . Clean Cycle
L. . . . . . . . Board Locked
d. . . . . . . . Test Mode
0. . . . . . . . O󰀨
E. . . . . . . . Self Test Failed
1ashes. . No ice sensed - Retrying
1. . . . . . . . . No ice sensed - Shut Down
2 ashes . Auger motor high load - Retrying
2. . . . . . . . Auger motor high load - Shut Down
3. . . . . . . . No water in reservoir
4. . . . . . . . Refrigeration pressure too high / low
5 ashes . . No Ice Sensed, Right - Retrying
5 . . . . . . . . No Ice Sensed, Right - Shut Down
7 ashes . . Auger Motor High Load, Right - Retrying
7 . . . . . . . . Auger Motor High Load, Right - Shut Down
8 ashes . . No Ice Sensed, Both - Retrying
8 . . . . . . . . No Ice Sensed, Both - Shut Down
9 ashes . . Auger Motor High Load, Both - Retrying
9 . . . . . . . . Auger Motor High Load, Both - Shut Down

December 2022
Page 16
FS2330L
Remote Low Side Service Manual
Remote Refrigeration with Condensing Unit or Rack
A condensing unit's compressor concentrates the heat
from ice making into high pressure, hot discharge gas.
The high pressure forces the gas to the condenser.
At the remote condenser, the discharge gas will
either enter the coils or bypass them through the
headmaster. The head master maintains a minimum
discharge pressure to keep ash gas out of the liquid
line.
From the condenser, refrigerant ows to the receiver.
It can be either liquid or gas, depending upon the
modulation of the head master.
From the receiver, liquid refrigerant ows to the ice
making head's thermostatic expansion valve. At the
expansion valve, liquid refrigerant passes from a high
pressure zone to one of relatively low pressure, and in
the low pressure zone it evaporates, absorbing heat.
From the evaporator, the refrigerant, carrying the
heat from ice making, ows back to the compressor
through the suction line, and the cycle continues.
The EPR valve in the ice machine keeps the suction
pressure at the correct pressure, regardless of a lower
pressure in the suction line between the ice machine
and the condensing unit or rack.
When enough ice has been made, the control
system closes the liquid line solenoid valve and the
condensing unit, when used, pumps down (a rack will
likely continue to operate), forcing refrigerant out of
the low side until its pump down pressure switch stops
the compressor.

FS2330L
Remote Low Side Service Manual
December 2022
Page 17
Electrical Component Details
Liquid line valve
• Opened by the controller to start ice making.
• Closed to shut unit o󰀨. Line voltage coil.
Controller
• Senses water, ice making, and auger amps.
• Controls liquid line solenoid coil and auger motor.
• Indicates status and component operation.
Transformer
• 12 volt secondary, supplies power to controller only.
The Power light will be ON when the transformer
has provided 12 volts AC to the controller.
Water Level Sensor
• Two probe conductivity sensor. When water touches
it the Water Present light will be ON.
Auger Motors
Four pole, split phase motor that operates each gear
reducer. When operating, the Auger indicator light will
be ON. The gear reducer lowers the input speed from
about 1500 RPM to about 11-13 RPM. Auger rotation
is counter clockwise when viewed from above.
Photo-electric eyes - 1 set per ice making section
• An LED emitter and photo transistor receiver set.
Pulsed infrared light is continuously emitted and
received to detect ice in the chute.
Lower light and switch panel
• Duplicates controller lights and switches.

December 2022
Page 18
FS2330L
Remote Low Side Service Manual
The ice machine’s function is to continuously produce
ice until the ice level control senses that there is
enough ice in the bin or dispenser. There are three
systems that operate in close coordination to make
ice. They are the electrical system, the water system
and the refrigeration system.
The electrical system includes the auger drive
assemblies, control system (an auger drive assembly
includes the gear reducer, auger and bearings).
The water system includes the oat valve, reservoir,
inside of the evaporators and the drain tubing.
The refrigeration system includes the external
condensing unit, expansion valve and outside of the
evaporators.
Control System
As noted, the electrical system includes a control
system. The control system consists of a controller
and sensors. It automatically operates the machine
to make ice only when needed. It also monitors the
refrigeration system, water system and auger drive
assembly for proper function.
Sensors are used to monitor the machine. A continuity
probe water sensor is located near the oat reservoir.
A tube from the oat tank allows water to touch
the sensor’s two stainless steel probes, making
a connection between them. That signals to the
controller the presence of water. The controller will not
allow the machine to make ice unless this sensor's
probes have continuity.
A set of photo-electric eyes (infrared emitter and
receiver) is located at the base of each ice discharge
chute. They are used to sense ice. As ice is made,
it falls through the infrared beam from the emitter,
causing the receiver to detect it. When ice has lled
the bin, the top of the ice pile will continuously stop
the beam, breaking the light to the receiver, and that
signals to the controller that the bin is full under that
ice drop zone, however the controller will not shut o󰀨
ice making unless both ice sensor sets have indicated
bin full.
Additionally, the control system uses the photo-eyes
to conrm ice making. As the machine makes ice,
the falling ice causes breaks in the infrared beam of
each ice sensor set. In operation, the rst 6 minutes
of ice making are ignored to give the machine time to
start producing ice. After that, the controller will look
for a minimum of one beam-break in 10 minutes. If
this is not achieved, the control will shut the machine
down for 10 minutes and add the incident to a strike
counter. During the wait period, a 1 will be ashing in
the code display.
After the 10 minute wait, the machine will restart. If no
ice is sensed three times in a row, the machine will
shut down on a no ice error and must be manually
reset. The 1 in the code display will change from
ashing to continuous.
If ice is detected within 10 minutes after any restart,
the strike counter will be reset to zero, and the code
display will show F, for freeze mode.
Each auger drive motor amperage is monitored by
the controller. If an auger motor is overloaded and
is drawing too many amps, the controller will shut
the machine o󰀨, and a 2 will be ashing in the code
display. The controller will attempt a restart of both
auger motors in 4 minutes. If during the rst 60
seconds after restart the auger motor current stays
within limits, the compressor is restarted and the
machine returns to normal operation. If the auger
motor’s current is excessive within 60 seconds after
the restart, the process will be repeated once more.
If during that try the current is still excessive the
machine shuts down and must be manually reset.
The 2 in the code display will change from ashing to
continuous.
Water System
The water level in the evaporator is maintained by a
oat valve in a separate reservoir. As ice is made, and
water is used, the water level in the reservoir drops,
opening the oat valve. The open valve adds water to
the reservoir to resupply it.
Sequence of Operation

December 2022
Page 19
FS2330L
Remote Low Side Service Manual
Electrical Sequence
Indicator Lights & Their Meanings
Power Status Water De-Scale &
Sanitize
Steady Green Normal Normal - -
Blinking Green Self Test Failure Switching on or
o󰀨. When Smart-
Board used,
machine attention
recommended.
- -
Blinking Red - Diagnostic shut
down
Lack of water -
Yellow - - - Time to descale and
sanitize
Blinking Yellow - - - In Cleaning Mode
Light O󰀨 No power Switched to O󰀨 Normal Normal
Pushing and releasing the On button starts the
machine.
The sequence of operation begins with water. Water
must be sensed or the controller will not start the ice
making process. If there is no water, a 3 will show it
the code display. If there is water, and there is nothing
blocking the infrared beam of the ice sensors, the
controller will start the machine.
A ashing F will show in the code display while the
auger drive motors start up. When successfully
started, the liquid line valve will open, and the ashing
F will change to a continuous F.
This continues until the both ice level controls sense
a full bin, at that time the liquid line valve is shut o󰀨,
and the auger motors continues to operate for a short
time to clear the evaporator of any left over ice. A
lowercase “b” will show in the code display.