Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagrams
- 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 Timer (S4 dip switch 1 & 2)
- 3. Pump-Out Timer/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) (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 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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2. Shutdown Diagnosis
When the appliance is running, hold ice in contact with the thermostatic bulb. BC switch
opens within 10 sec., shutting down the appliance. BC is factory set, and generally
no adjustment is required. However, adjustment may be needed in some conditions,
particularly at higher altitude locations. Diagnosis: See "II.E. Bin Control Check." CB red
K4 connector must have the jumper in place. When the jumper is in place, the green "BC
CLOSED" LED remains on. If the jumper is not in place, yellow "BC OPEN" LED turns
on and the icemaker turns off and remains off until the jumper is replaced in its original
position. NOTICE! CB red K4 connector jumper (4A4883G01) must be in place.
3. Freeze-Time Correction Cycle Diagnosis
1) See "II.C. Freeze-Time Correction Cycle (90 min.).""
Legend: BC–bin control; CB–control board; Comp–compressor; CT–control transformer;
CV–cleaning valve; DV–drain valve; FMRs–fan motor remote;
FS–oat switch; HGVs–hot gas valve; HM–headmaster (C.P.R.);
HPS–high-pressure switch; LLVs–liquid line valve; MC–magnetic contactor:
MT–main transformer; PM–pump motor; TXV–thermostatic expansion valve;
WV–inlet water valve