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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1. Control Board Layout
• K1 Connector
(115VAC)
115VAC Input
#3 (brown)
GM, EH, CCR
#2 (white/black)
2A8054-01
"F-C" Control Board
Part Number
2A8054-01
• "FLUSH" LED
(X3 Relay) (drain)
DV
• "COMP" LED
(X1 Relay)
PDS
• "GM" LED
(X2 Relay)
GM
Drain Valve
#10 (yellow)
• "WTRIN" LED
(X4 Relay)
WV
• K6 Connector (20VDC)
Bin Control (infrared sensor)
(dark blue)
(white, signal (common))
(brown (ground))
• S2 "SERVICE" Button
(Ice Purge Cycle Bypass)
Control Transformer
24VAC Input
#1 (white/red)
Upper Float Switch
#6 (red)
Compressor Control Relay
Circuit #5 & #6 (white/orange)
High-Pressure Switch
(not used on this model)
#3 & #4 (yellow)
Control Switch
#1 & #2 (white/black)
Inlet Water Valve
#8 (white/brown)
• "POWER OK" LED
Control Transformer
24VAC Neutral
#2 (light blue)
Lower Float Switch
#7 (blue)
Float Switch-Common
#5 (black) (5VDC)
• S1 Dip Switch
Control Transfor mer
24VAC Input
#9 (white/red)
• K9 Connector (5VDC)
• K8 Connector
(24VAC and 5VDC)
• K7 Connector-Open
• K2 Connector
(24VAC)
Water Dispensing
Valve, Agitation
Motor, and Ice
Dispensing LEDs
(not used on this
model)
Control Transformer
24VAC Input
#7 (white/red)
• K3 Connector-Open
• K4 Connector-Open
• K5 Connector-Open
• J2 Connector-Open
3 2 1
(DRAIN)
Jumper
#3 and #4 (gray) (5VDC)