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
 
Safety Notices
Read these precautions to prevent personal injury:
•  Read this manual thoroughly before operating, 
installing or performing maintenance on the 
equipment. Failure to follow instructions in this 
manual can cause property damage, injury or death.
•  Routine adjustments and maintenance procedures 
outlined in this manual are not covered by the 
warranty.
•  Proper installation, care and maintenance are essential 
for maximum performance and trouble-free operation 
of your equipment.
•  Visit our website www.manitowocice.com for manual 
updates, translations, or contact information for 
service agents in your area.
This equipment contains high voltage electricity and 
refrigerant charge. Installation and repairs are to be 
performed by properly trained technicians aware of 
the dangers of dealing with high voltage electricity and 
refrigerant under pressure. The technician must also 
be certified in proper refrigerant handling and servicing 
procedures. All lockout and tag out procedures must be 
followed when working on this equipment.
•  This equipment is intended for indoor use only. Do not 
install or operate this equipment in outdoor areas.
•  As you work on this equipment, be sure to pay close 
attention to the safety notices in this handbook. 
Disregarding the notices may lead to serious injury 
and/or damage to the equipment.










