Manitowoc Indigo Series Technician's Handbook page 156

Self Contained
YES
Air-cooled Condenser?
NO
Self Contained
YES
Water-cooled
Condenser?
NO
Traditional Remote
YES
Air-cooled Condenser?
Fan cycling
control operates correctly
in freeze cycle?
NO
Maintains correct
pressure in freeze cycle?
NO
Refer to Symptom #3
Traditional Remotes Only Chart
Fan cycling
control opens below setpoint
YES
in harvest cycle?
Replace Fan
NO
Cycling Control
Stops water flow 100%
YES
in harvest cycle?
Adjust or Replace
Water Regulating
NO
Valve
YES
Are you sure Discharge line
temperature is normal?
Repeat this flowchart
& verify all data
YES