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
44 Part Number: 000015430 Rev 02 5/20
Step 6 Mix a solution of cleaner/descaler and
lukewarm water. Depending upon the amount of mineral
buildup, a larger quantity of solution may be required.
Use the ratio in the table below to mix enough solution to
thoroughly clean all parts.
Solution Type Water Mixed With
Cleaner 1 gal. (4 L) 16 oz (475 ml) cleaner
Step 7 Use 1/2 of the descaler/water mixture to
descale all components. The solution will foam when it
contacts lime scale and mineral deposits; once the foaming
stops use a soft-bristle nylon brush, sponge or cloth (NOT
a wire brush) to carefully clean the parts. Soak parts for 5
minutes (15 - 20 minutes for heavily scaled parts). Rinse all
components with clean water.
Notice
Do not clean the ice thickness probe in a dishwasher.
Permanent damage to the ice thickness probe will occur.
Ice Thickness Probe & Water Level Probe
Clean the probes using the following procedure.
NOTE: Do not soak electrical connectors in cleaner or
sanitizer solution.
1. Mix a solution of Manitowoc ice machine cleaner/
descaler and water (2 ounces of cleaner/descaler to
16 ounces of water) in a container.
2. Clean all probe surfaces including all plastic parts
(do not use abrasives). Verify all surfaces are clean.
Thoroughly rinse probes with clean water.
3. Reinstall probe, then sanitize the ice machine and bin/
dispenser interior surfaces.