Part Number STH038 5/12
87
SAFETY LIMIT #2
Harvest time exceeds 3.5 minutes for 500 consecutive
harvest cycles
Possible Cause Checklist
Improper Installation
•
Refer to “Installation/Visual Inspection Checklist”
page 102
Water System
•
Loss of water from sump area
•
Water area (evaporator) dirty
•
Dirty/defective water dump valve
•
Low water pressure 1.37 bar min (20 psig)
•
Vent tube not installed on water outlet drain
•
Clogged water distribution tube
•
Dirty/defective water fill valve
•
Defective water pump
•
Water freezing behind evaporator
•
Plastic extrusions and gaskets not securely
mounted to the evaporator
Electrical System
•
Ice thickness probe out of adjustment
•
Ice thickness probe dirty
•
Bin switch closed/defective
•
Premature harvest
Refrigeration System
•
Defective harvest valve
•
TXV flooding (check bulb mounting)
•
Defective fan cycling control
•
Non-Manitowoc components
•
Improper refrigerant charge
Summary of Contents for I0320A
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Page 124: ...122 Is the evaporator dirty Dry evaporator first then check YES NO NO ...
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Page 176: ...174 Part Number STH038 5 12 I0320 Self Contained 1 Ph ...
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