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 Timer (S4 dip switch 1 & 2)
- 3. Pump-Out Timer (S4 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S4 dip switch 5 & 6)
- 5. Harvest Pump Timer Operation (S4 dip switch 7)
- 6. Factory Use (S4 dip switch 8)
- 7. Freeze Timer (S4 dip switch 9 & 10)
- 8. Float Switch Selector (S5 dip switch 1)
- 9. Refill Counter (S5 dip switch 2, 3, and 5), Program Selector (4)
- D. Switches
- 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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9) Shutdown
a) Thermostatic Bin Control (TBC):
When the appliance is running, hold ice in contact with the thermostatic bulb. BC
switch opens within 10 sec., shutting down the appliance. TBC 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.D.1. Thermostatic 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.
b) Mechanical Bin Control (MBC):
See "II.D.2. Mechanical Bin Control Check and Cleaning."
Legend: BC–bin control; CB–control board; Comp–compressor; CR–compressor relay;
DV–drain valve; FM–fan motor; FMR–fan motor remote; FS–oat switch;
HGV–hot gas valve; HM–headmaster (C.P.R.); HPS–high-pressure switch;
LLV–liquid line valve; MBC–mechanical bin control; PM–pump motor;
TBC; thermostatic bin control; TXV–thermostatic expansion valve;
WRV–water regulating Valve; WV–inlet water valve