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
 
38  Part Number: 000015430 Rev 02 5/20
Detailed Descaling/Sanitizing Procedure
This procedure must be performed a minimum of once 
every six months.
•  The ice machine and bin must be disassembled 
descaled and sanitized.
•  All ice produced during the descaling and sanitizing 
procedures must be discarded.
•  Removes mineral deposits from areas or surfaces that 
are in direct contact with water.
Remedial Cleaning Procedure
•  This procedure descales all components in the water 
flow path, and is used to clean the ice machine 
between the bi-yearly detailed descaling/sanitizing 
procedure.
IAUCS®
iAuCS® does not operate when the Clean button is used to 
start a clean cycle. To prime the hose, activation is required 
through the Service Menu/iAuCS® icon.
Exterior Cleaning
Clean the area around the ice machine as often as 
necessary to maintain cleanliness and efficient operation.
Wipe surfaces with a damp cloth rinsed in water to remove 
dust and dirt from the outside of the ice machine. If a 
greasy residue persists, use a damp cloth rinsed in a mild 
dish soap and water solution. Wipe dry with a clean, soft 
cloth.
The exterior panels have a clear coating that is stain 
resistant and easy to clean. Products containing abrasives 
will damage the coating and scratch the panels. 
•  Never use steel wool or abrasive pads for cleaning.
•  Never use chlorinated, citrus based or abrasive 
cleaners on exterior panels and plastic trim pieces.










