Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- A. Control Board Layout
- B. LED Lights and Audible Alarm Safeties
- C. Settings and Adjustments
- 1. Default Dip Switch Settings
- 2. Harvest Time (S1 dip switch 1 & 2)
- 3. Pump-Out Time/Harvest Time During Pump-Out (S1 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S1 dip switch 5 & 6)
- 5. Harvest Pump Time Duration (Harvest Assist) (S1 dip switch 7 & 8)
- 6. Freeze Timer (S1 dip switch 9 & 10)
- 7. Pump-Out/Drain Selector (S2 dip switch 1)
- 8. Harvest Promotion Control (S2 dip switch 2)
- 9. Minimum Harvest Time (S2 dip switch 3)
- 10. Harvest Completion Detection Control (S2 dip switch 4)
- 11. Overfreeze Detection Control (S2 dip switch 5)
- 12. Slush Control (S2 dip switch 6)
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
31
Low Ice Production - Possible Cause
Long Freeze Cycle
1. Evaporator a) Scaled up, dirty.
2. Float Switch
See "II.E. Float Switch Check
and Cleaning"
a) Scaled up, dirty.
b) Float sticking.
c) Defective switch.
3. Inlet Water Valve a) Leaking by.
4. Hot Gas Valve a) Erratic or open.
5. Condenser a) Clogged.
6. Control Board
See "II.C. Control Board Check"
a) Float switch connection loose (K5).
b) Defective.
7. Refrigerant Charge a) Low.
8. Thermostatic Expansion Valve
(KM-161 B_J Models)
a) Bulb loose.
b) Defective.
9. Compressor a) Inefficient or off.
10. Pump Motor a) RPM too slow.