Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagram
- A. Construction
- B. Icemaking Unit
- C. Water/Refrigeration Circuit Diagram
- II. Sequence of Operation and Service Diagnosis
- A. Sequence of Operation Flow Chart
- 1. Icemaking and Drain Cycle
- 2. Shutdown
- B. Service Diagnosis
- 1. Ice Production Check
- 2. Diagnostic Procedure
- C. Control Board Check
- D. Bin Control Check
- E. Float Switch Check and Cleaning
- F. Diagnostic Tables
- III. Controls and Adjustments
- A. Control Board
- 1. Control Board Layout Shown:
- 2. LED Lights and Audible Alarm Safeties
- 3. Ice Purge Cycle Bypass
- B. Controls and Adjustments
- 1. Default Dip Switch Settings
- 2. 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)
- 6a. Mechanical Shutdown Delay (S1 dip switch 8) Auxiliary Code E-0:
- 6b. Agitation and Ice Purge Timer (S1 dip switch 8) Auxiliary Code F-0 and Later:
- 7. Mechanical Shutdown Delay (S1 dip switch 9) Auxiliary Code F-0 and Later
- 8a. Factory Use (S1 Dip Switch 9 & 10) Auxiliary Code E-0
- 8b. Factory Use (S1 Dip Switch 10) Auxiliary Code F-0 and Later
- C. Power Switch and Control Switch
- IV. Refrigeration Circuit and Component Service Information
- A. Refrigeration Circuit Service Information
- B. Component Service Information
- V. Maintenance
- VI. Disposal
- VII. Technical Information
- A. Specification & Performance Data Sheets
- 1. F-330BAJ
- 2. F-330BAJ-C
- B. Wiring Diagram
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a) Control Switch – CB K9 #1 (W/BK) and CB K9 #2 (W/BK): 5VDC is present
between CB white K5 connector, pin closest to CB red K4 connector and CB K9
#1(W/BK) at all times. If 5VDC is not present, replace CB. When the control switch is
in the "ICE" position, the control switch contacts are open. 0VDC is present between
CB white K5 connector, pin closest to CB red K4 connector and CB K9 #2 (W/BK).
When in the "ICE" position, 5VDC is present between CB K9 #1 (W/BK) to CB K9
#2 (W/BK). When the control switch is in the "DRAIN" position, the control switch
contacts are closed. 5VDC is present between CB white K5 connector, pin closest
to CB red K4 connector, to CB K9 #1 (W/BK) or#2(W/BK). If 5VDC is not present,
replace CB. 0VDC is present from CB K9 #1(W/BK) to CB K9 #2 (W/BK).
b) High-Pressure Switch – CB K9 #3 (Y) and CB K9 #4 (Y): 5VDC is present between
CB K5 connector, pin closest to CB red K4 connector and CB K9 #3 (Y) at all times.
When the high-pressure switch is closed, 5VDC is present between CB K5 pin
closest to CB K4 connector to CB K9 #3 (Y) and CB K9 #4 (Y). If 5VDC is not
present, replace CB. When the high-pressure switch is closed, 0VDC is present at
CB K9 #3 (Y) to CB K9 #4 (Y). When the high-pressure switch is open, 5VDC is
present at CB K9 #3 (Y) to CB K9 #4 (Y). If the high-pressure switch is open and
CB is not in alarm, replace CB. If5VDC is present at CB K9 #3 (Y) and not at CB
K9 #4 (Y), the high-pressure switch is open and CB sounds a 3-beep alarm. Check
continuity across the high-pressure switch (CB K9 #3 (Y) and CB K9 #4 (Y)).
c) Compressor Control Relay (CCR) – CB K9 #5(W/O) and CB K9 #6 (W/O):
5VDC is present from CB white K5 connector, pin closest to CB red K4 connector
to CB K9 #5 (W/O) at all times. If 5VDC is not present, replace CB. When CCR
terminals #3 (W/O) and #4 (W/O) are open (CCR de-energized), 5VDC is present
between CB K9 #5 (W/O) and CB K9 #6 (W/O). When CCR terminals #3(W/O) and
#4 (W/O) are closed (CCR energized), 5VDC is present between CB K9 #5 (W/O)
and CB K9 #6 (W/O). When CCR terminals #3(W/O) & #5 (W/O) are open CB may
be in an 8-beep alarm. See "III.A.2. LED Lights and Audible Alarm Safeties."
d) Bin Control – CB K8 #3 (GY) and CB K8 #4(GY): 5VDC is present from CB white
K5 connector, pin closest to CB red K4 connector to CB K8 #3 (GY) at all times.
If 5VDC is not present, replace CB. When BC is closed (calling for ice), 5VDC is
present from CB white K5 connector, pin closest to CB red K4 connector, to CB K8
#3 (GY) and CB K8 #4(GY). If 5VDC is not present to either CB K8 #3 (GY) or CB
K8 #4(GY), replace CB. If 5VDC is present at CB K8 #3 (GY) and not to CB K8 #4
(GY), BC is open. See "II.D. Bin Control Check."
e) Float Switch (LFS and UFS) – CB K8 #5 (BK) (common), CB K8 #6(R) (upper),
and CB K8 #7 (BU) (lower): 5VDC is present from CB white K5 connector pin closest
to CB red K4 connector to CB K8 #5(BK) (common) at all times. If not, replace CB.
5VDC is present from CB white K5 connector pin closest to CB red K4connector
to CB K8 #6 (R) (upper) and CB K8 #7 (BU) (lower) when FS is open. If 5VDC
is present between CB K8 #5 (BK) and CB K8 #6 (R) (upper) or CB K8 #7 (BU)
(lower), FS is open. Forfurther FS diagnostics, see "II.E. Float Switch Check and
Cleaning."