96 Part Number STH098 06/19
Refrigeration Diagnostics
These ice machines have a very small refrigerant charge
and we do not recommend diagnosing the ice machine
using refrigerant pressures. For this reason refrigeration
access fittings are not installed during production and the
ice machine is diagnosed with temperatures.
ELIMINATE ALL NON REFRIGERATION PROBLEMS
BEFORE DIAGNOSING THE REFRIGERATION SYSTEM.
• Perform a visual inspection for clearances, drains, dirty
condenser/filter and water filter replacement.
• Verify water flow is even across the entire evaporator.
• Verify ice fill pattern - Mineral build-up on the
evaporator assembly will cause water tracking and
an erratic ice fill pattern. Descale with Manitowoc
Ice Machine cleaner/descaler to remove any mineral
buildup.
• Check ice thickness bridge - Bridge should be 3 mm.
• Run an ice production check - Ice production checks
within 10% are considered normal.
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