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Manitowoc MD0420A - Page 65

Manitowoc MD0420A
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Part Number 040005626 5/17 65
Safety Limit #2
Harvest time exceeds 3.5 minutes for 100
Consecutive harvest cycles.
Possible Cause Checklist
Improper installation
Refer to “Installation/Visual Inspection Checklist”
on page 55.
Water System
Water area (evaporator) dirty
Dirty/defective water dump valve
Vent tube not installed on water outlet drain
Water freezing behind evaporator
Plastic extrusions and gaskets not securely
mounted to the evaporator
Electrical system
Bin switch defective
Premature harvest
Refrigeration system
Non-OEM components
Improper refrigerant charge
Defective harvest valve
TXV flooding (check bulb mounting)
Defective fan cycling control

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