Water System Checklist; Water Area (Evaporator) Is Dirty; Water Inlet Pressure Not Between 20 And 80 Psig; Water Filtration Is Plugged (If Used) - Manitowoc SD0302A Technician's Handbook

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Water System Checklist

A water-related problem often causes the same
symptoms as a refrigeration system component
malfunction.
Water system problems must be identified and
eliminated prior to replacing refrigeration components.

Water area (evaporator) is dirty

• Clean as needed

Water inlet pressure not between 20 and 80 psig

(1-5 Bar, 138-552 kPa).
• Install water regulator or increase water pressure
Incoming water temperature is not between 35°F
(2°C) and 90°F (32°C)
• If too hot, check the hot water line check valves in
other store equipment

Water filtration is plugged (if used)

• Install a new water filter
Water dump valve leaking during the Freeze cycle
• Clean/replace dump valve as needed
Vent tube is not installed on water outlet drain
• See Installation Instructions
Hoses, fittings, etc., are leaking water
• Repair/replace as needed
Water fill valve is stuck open or closed
• Clean/replace as needed
Water is leaking out of the sump trough area
• Stop the water loss
Uneven water flow across the evaporator
• Clean the ice machine
Plastic extrusions and gaskets are not secured to
the evaporator
• Remount/replace as needed
Part Number 80-1479-3 7/10
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