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
 
40  Part Number: 000015430 Rev 02 5/20
Detailed Descaling/Sanitizing Procedure
,
Caution
Use only Manitowoc approved Ice Machine Cleaner/
Descaler and Sanitizer for this application (Manitowoc 
Cleaner/Descaler part number 9405463 and Manitowoc 
Sanitizer part number 9405653). It is a violation of Federal 
law to use these solutions in a manner inconsistent with 
their labeling. Read and understand all labels printed on 
bottles before use.
CLEANING PROCEDURE
,
Caution
Do not mix Cleaner/Descaler and Sanitizer solutions 
together. It is a violation of Federal law to use these 
solutions in a manner inconsistent with their labeling.
n
Warning
Wear rubber gloves and safety goggles (and/or face 
shield) when handling Ice Machine Cleaner or Sanitizer.
Ice machine cleaner/descaler is used to remove lime scale 
and mineral deposits. Ice machine sanitizer disinfects and 
removes algae and slime.
NOTE: Although not required and dependent on your 
installation, removing the ice machine top cover may allow 
easier access.










