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
92 Part Number: 000015430 Rev 02 5/20
Troubleshooting By Symptom
The troubleshooting procedures follow diagnostic charts.
There are four symptoms, the symptom that you are
experiencing will determine which diagnostic chart to
use. The chart asks yes and no questions to determine
the problem. The diagnostic chart will direct you to a
procedure to correct the problem. Remote condenser, and
self contained models use separate charts.
SYMPTOM #1
Ice Machine Stops Running
Ice machine is in Ice Making cycle
or
Has a History of Shutting Down
• Refer to Ice Machine Stops Running diagnostic chart
SYMPTOM #2
Ice Machine has a Long Freeze Cycle
Ice Formation is Thick
or
Thin Ice Fill on Inlet or Outlet of Evaporator
or
Low Production
Service Fault (possible)
• Refer to Freeze Cycle Refrigeration System Operational
Analysis Table
SYMPTOM #3
Ice Machine Will Not Harvest - Freeze Cycle is Normal and
Ice Cubes are Not Melted After Harvest
Long Harvest (possible)
• Refer to Refrigeration Harvest Flow Chart
SYMPTOM #4
Ice Machine Will Not Harvest - Freeze Cycle is Normal and
Ice Cubes are Melted After Harvest
• Refer to Ice Meltout Flow Chart