86 Part Number 80-1479-3 7/10
SAFETY LIMIT #2
Water System
1. Ice thickness control probe is dirty causing a
premature harvest with no ice on the plate.
page 149
2. Dirty evaporator causing a long harvest and ice
melt out. page 131
Electrical System
1. Ice thickness probe adjustment too close
2. Bin switch failed closed
3. Harvest valve not energizing
4. Quad Evaporator Only - Harvest pressure
solenoid valve not energizing.
Refrigeration System
1. Non-Manitowoc components
2. Incorrect refrigerant charge
3. TXV flooding
4. Defective harvest valve
5. Defective fan cycle control - will not open
(page 167)
6. Defective Head Pressure Control Valve - will not
bypass (page 164)
7. Quad Evaporator Only - Harvest pressure
solenoid valve not energizing.
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