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
 
Part Number: 000015430 Rev 02 5/20 39
Touchscreen Operation For The Clean Cycle
STARTING A CLEAN CYCLE
Pressing the clean icon will display a Continue/Abort 
screen, and a warning that pressing Continue will result in 
a clean cycle that can last up to 35 minutes.
WATER CURTAIN/DAMPER OPERATION DURING THE 
CLEAN CYCLE
The water curtain/damper must remain closed during the 
clean sequence. When the curtain/damper is open for 
more than 3 seconds the clean cycle stops and a message 
is displayed on the touchscreen with a choice to continue 
or stop the clean cycle. Stopping the clean cycle will result 
in a series of rinse and dump cycles to verify cleaner or 
sanitizer has been removed before ice making.
PAUSING A CLEAN CYCLE
The clean cycle can be paused and resumed at any time 
by pressing the on/off button. The clean cycle will resume 
from the beginning of either the wash or rinse cycle 
depending on the point of interruption.
POWER INTERRUPTION DURING CLEAN CYCLE
If the power supply is interrupted during the clean cycle 
the state is retained in the circuit board. When power is 
reapplied the clean cycle will resume from the beginning 
of either the wash or rinse cycle depending on the point of 
interruption.
ABORTING A CLEAN CYCLE
Verify cleaner/descaler or sanitizer is not present in the 
water system before aborting a clean cycle.
1.  Press and hold the Clean button, then press and 
release the On/Off button.
2.  Release the Clean button and select abort from the 
touchscreen.










