Service Manual
Table Of Contents
- Safety Notices- Definitions
- General Information
- Installation
- Maintenance
- Operation
- Troubleshooting- Troubleshooting
- Troubleshooting By Symptom- Reset To Factory Defaults
- Symptom #1 - Ice Machine Will Not Run
- #2 - Low Production, Long Freeze Cycle
- Symptom #2 - Freeze Cycle Refrigeration System Operational Analysis Tables
- Symptom #3 & #4 - Harvest Problems Self‑contained Air, Water & Remote Condenser Models
- Symptom #3 - Self-Contained Air or Water-cooled
- Symptom #3 - Remote Condenser
- Symptom #4 - Self-Contained Air, Water-Cooled or Remote
 
 
- Component Check Procedures- Electrical Components- Control Board, Display And Touchscreen
- Control Board Relay Test
- Programming A Replacement Control Board
- USB Flash Drive Specifications and Formatting
- Exporting Data to a Flash Drive
- Upgrading Firmware with a Flash Drive
- Main Fuse
- Bin Switch
- Water Level Control Circuitry
- Ice Thickness Probe (Initiates Harvest)
- Bin Level Probe
- Thermistors
- High Pressure Cutout (HPCO) Control
- Fan Cycle Control
- Harvest Assist Air Pump
- Compressor Electrical Diagnostics
- Diagnosing Start Components
 
- Refrigeration Components
- Refrigerant Recovery/Evacuation
- System Contamination Clean-Up
- Liquid Line Filter-Driers
- Replacing Pressure Controls Without Removing Refrigerant Charge
- Total System Refrigerant Charge
 
- Electrical Components
- Charts
- Diagrams- Wiring Diagrams- Wiring Diagram Legend
- IF0300/IT0420/IT0450/IT0500/IT0620/IT0750 1ph Air/Water
- IT0500/IT1200 - 1ph Remote Air-Cooled
- IF0600/IF0900/IT0900/IT1200 - 1ph Air/Water
- IF0600/IF0900/IT0900/IT1200 - 3ph Air/Water
- IT1500/IT1900 - 1ph Air/Water
- IT1500/IT1900 - 3 ph Air/Water
- IF0500/IF0600/IF0900/IT1200/IF1500 - 1ph Remote
- IF0500/IF0600/IF0900/IT1200/IF1500 - 3ph Remote Condenser
 
- Electronic Control Board
- Refrigeration Tubing Schematics
 
- Wiring Diagrams
 
64  Part Number: 000015430 Rev 02 5/20
ICE THICKNESS CHECK
The ice thickness probe is factory-set to maintain the ice 
bridge thickness at 1/8" (3 mm). 
NOTE: Make sure the water curtain/splash shields are in 
place when performing this check. It prevents water from 
splashing out of the water trough. Remove the curtain to 
make an adjustment, then replace immediately after the 
adjustment is made.
1.  Inspect the bridge connecting the cubes. It should be 
1/8" (3 mm) thick.
2.  If adjustment is necessary, turn the ice thickness 
probe adjustment screw clockwise to increase bridge 
thickness or counterclockwise to decrease bridge 
thickness. Set a 9/32" gap between the ice thickness 
probe and evaporator as a starting point. Then adjust 
to achieve 1/8" ice thickness.
3.  Make sure the ice thickness probe wire and the 
bracket do not restrict movement of the probe.
1/8" (3 mm) 
ICE BRIDGE THICKNESS
PLACE 9/32" (7 mm) DRILL BIT 
HERE TO SET INITIAL GAP
Ice Thickness Check
NOTE: Turning the adjustment 1/3 of a turn will change the 
ice thickness about 1/16" (1.5 mm). Make adjustment only  
when the ice machine is off to prevent initiating a harvest.










