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
116 Part Number: 000015431 Rev 02 6/20
SYMPTOM #3 HARVEST PROBLEMS
Definition of a harvest problem; At the end of a 7 minute
harvest cycle the slab(s) of ice is still contacting the
evaporator. The slab of ice may or may not be removable
by hand. Harvest problems can be split into two
categorizes.
• Melted sheet of cubes at the end of the harvest cycle.
Ice can be removed rather easily by hand. The back of
the cubes are misshapen and melted. This indicates
something is on the evaporator preventing the ice slab
from releasing. Follow the appropriate troubleshooting
flow chart to determine the cause of the problem. A
manual cleaning procedure must always be performed
when this problem is encountered.
• Normal sheet of cubes at the end of the harvest cycle.
Ice is difficult to remove from the evaporator by hand.
Once removed the back of the cubes are square and
show no signs of melting. This indicates a refrigeration
problem. The source of the problem could be in
the freeze or harvest cycle. Use the appropriate
troubleshooting flow chart to determine the cause of
the problem.
Normal Ice Cube
Melted Out Ice Cube