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
- B. Controls and Adjustments
- 1. Default Dip Switch Settings
- 2. BC (Infrared Sensor) Shutdown Delay (S1 dip switch 1, 2, 3)
- 3. Drain Frequency Control (S1 dip switch 4)
- 4. Continuous Dispensing Timer (S1 dip switch 5 & 6)
- 5. Bin Control Selector (S1 dip switch 7)
- 6. BC (Mech. Stand-Alone or Backup (only)) Shutdown Delay (S1 dip switch 8)
- 7. Shutdown Sequence (S1 Dip Switch 9)
- 8. Factory Use (S1 Dip Switch 10)
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Disposal
- VII. Technical Information
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7) Freeze Cycle "GM" and "COMP" LED are on: The 5-min. ice purge timer terminates
or the ice purge cycle bypass button ("SERVICE") is pressed, "COMP" LED turns on.
To bypass the 5-min. Ice Purge Cycle, press the "SERVICE" button on CB after the
"GM" LED turns on. WARNING! Risk of electric shock. Care should be taken not to
touch live terminals. 115VAC is present between CB X1 relay power supply black (BK)
and neutral (W) at all times. If not, check 115VAC power supply wire connections from
power switch. If "COMP" LED is not on after 5-min. ice purge timer terminates, replace
CB. When "COMP" LED turns on, PDS energizes. If "COMP" LED is on and PDS does
not energize, check for 115VAC between CB X1 relay violet (V) wire and a neutral (W).
If 115VAC is not present, conrm X1 relay black (BK) to a neutral (W). If 115VAC is
present on X1 relay black (BK) and not on X1 relay violet (V), replace CB.
8) Rell "WTRIN" LED is on: See "5) Fill "WTRIN" LED is on:") above.
Legend: BC–bin control (infrared sensor); CB–control board; CCR/–compressor control
relay; EH–evaporator heater; FS–oat switch; GM–gear motor; LFS–lower oat
switch; PDS–pump-down solenoid valve; UFS–upper oat switch; WV–inlet water
valve