Service Manual
Table Of Contents
- Safety Notices
- Definitions
- General Information
- Installation
- Stacking Two Ice Machines on a Single Storage Bin
- Location of Ice Machine
- Clearance Requirements
- Dual Evaporator Model Installation on a Manitowoc Bin
- Ice Machine on a Dispenser Installation
- Water Supply and Drains
- Lineset Applications
- QuietQube® Remote Condensing Unit
- Additional Refrigerant Charge For 51' to 100' Line Sets
- Maintenance
- Operation
- Menu Navigation
- Component Check Procedures
- Control Board, Display And Touchscreen
- Operating an ice machine without a 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
- Low Pressure Cutout (LPCO) Control
- Compressor Time Delay
- Fan Cycle Control
- Harvest Assist Air Pump
- Compressor Electrical Diagnostics
- Diagnosing Start Components
- Refrigeration Components
- Recovery/Evacuation/Charging Procedures QuietQube® Models
- System Contamination Clean-Up
- Total System Refrigerant Charge QuietQube® CVD Models
- Control Board, Display And Touchscreen
- Charts
- Diagrams
Part Number: 000015431 Rev 02 6/20 143
Diagnostics
Important
The following occurs when the reverse osmosis (R.O.)
option has been enabled and then disabled (i.e. placed
back into factory default) and the jumper has not been
reset to the 45 second factory default position.
A. The higher water level probe sensitivity
will remain active see “Reverse Osmosis or
Deionized Water Usage” on page 148.
B. The control board will generate Water-Level
probe faults on every cycle.
C. The control board initiates a “Safe-Mode”
every other cycle.
Check real time data
1. Navigate to Menu/Service/Diagnostics/Inputs
2. Focus on Water LVL Low and Water LVL High display
• Not sensing displayed: indicates not touching water.
• Sensing displayed: Indicates touching water.
NOTE: If using reverse osmosis or deionized water, increase
sensitivity by moving the jumper over one pin (refer to
“Electronic Control Board” on page 200) and enabling
R.O. menu “Use less water with reverse osmosis”.