Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagrams
- II. Sequence of Operation and Service Diagnosis
- III. Settings 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 (S4 dip switch 1 & 2)
- 3. Pump-Out Time/Harvest Time During Pump-Out (S4 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S4 dip switch 5)
- 5. Harvest Pump Time (Harvest Assist Duration) (S4 dip switch 6)
- 6. Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 dip switch 7)
- 7. Factory Use (S4 dip switch 8)
- 8. Freeze Timer (S4 dip switch 9 & 10)
- 9. Float Switch Control Selector (S5 dip switch 1)
- 10. Refill Counter (S5 dip switch 2 and 3)
- 11. Minimum Harvest Time (S5 dip switch 4)
- 12. Anti-Slush (S5 dip switch 5)
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
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B. Service Diagnosis
WARNING
• This appliance should be diagnosed and repaired only by qualied service
personnel to reduce the risk of death, electric shock, serious injury, or re.
• Risk of electric shock. Use extreme caution and exercise safe electrical practices.
• Risk of electric shock. Control switch (KMS) in "OFF" position does not
de-energize all loads.
• Moving parts (e.g., fan blade) can crush and cut. Keep hands clear.
• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are
securely in place after the appliance is serviced. Make sure that none have fallen
into the dispenser unit/storage bin.
• Make sure all food zones in the icemaker and dispenser unit/storage bin are clean
after service. For cleaning procedures, see "V. Maintenance."
1. Diagnostic Procedure
The diagnostic procedure is a sequence check that allows you to diagnose the electrical
system and components. Before proceeding, check for correct installation, proper voltage
per nameplate, and adequate water supply.
Note: • When checking high voltage (115VAC), always choose a neutral (W) to establish
a good neutral connection.
• On 3-phase models, the neutral (W) is provided through MT. To conrm a good
neutral (W), check for 60VAC from neutral (W) to ground (GND). If 60VAC is
present, neutral (W) is good. If 60VAC is not present, check 208-230VAC main
power supply to MT. If 208-230VAC is present, check MT continuity.
• When checking voltage from the CB K1 connector (10 pin connector), pull CB
K1connector out slightly to allow room for multimeter test leads contact.
1) Turn off the power supply, then access the control box. Clear any ice from BC.
2) Check that the 115VAC 10A fuses in the KMS and SRK are good.
Conrm that the location meets installation requirements:
KMS-1402MLJ:
• The appliance is not intended for outdoor use. Normal operating ambient temperature
should be within 45°F to 100°F (7°C to 38°C).
• No clearance is required for proper operation
• The appliance should not be located in a corrosive environment.
SRK-15J/3:
• A dry and well ventilated area with 24" (61 cm) clearance in both front and rear for
proper air circulation and ease of maintenance and/or service should they be required.