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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E. Float Switch Check and Cleaning
1. Float Switch Check
A dual oat switch is used to determine that there is sufficient water in the reservoir
during ll and rell. CB monitors UFS to de-energize WV when UFS closes during ll and
rell. CB monitors LFS to energize WV when LFS opens during the freeze cycle (rell).
CB monitors the time between LFS opening and UFS closing (90-sec. low water safety).
CB also monitors the time between UFS closing and LFS opening (30-min. freeze timer).
No adjustment is required.
1) Remove the front panel. Next, move the power switch to the "OFF" position, then move
the control switch to the "DRAIN" position.
2) Move the power switch to the "ON" position to drain the appliance.
3) After the water has drained, move the power switch to the "OFF" position and unplug
the appliance from the electrical outlet.
4) Disconnect the FS molex plug from the control box and check continuity across FS
wires. (BK) to (R) for UFS and (BK) to (BU) for LFS. See Fig.4. With the water reservoir
empty, FS switches are open. If open, continue to step 5. If closed, follow the steps in
"II.E.2. Float Switch Cleaning." After cleaning the oats, check them again. Replace if
necessary.
5) Reconnect the FS molex plug on the control box.
6) Plug the appliance back into the electrical outlet. Next, move the control switch to the
"ICE" position, then move the power switch to the "ON" position and let the water
reservoir ll.
7) Once the reservoir is full and GM starts, move the power switch to the "OFF" position,
then unplug the appliance from the electrical outlet.
8) Disconnect the FS molex plug from
the control box and check continuity
across FS wires. (BK) to (R) for UFS
and (BK) to (BU) for LFS. With the
water reservoir full, FS switches
are closed. If open, follow the steps
in "II.E.2. Float Switch Cleaning."
After cleaning the oats, check them
again. Replace if necessary.
9) Reconnect the FS molex plug on the
control box.
10) Plug the appliance back into the
electrical outlet. Next, move the
power switch to the "ON" position
to start the automatic icemaking
process.
11) Replace the front panel in its correct
position.
Reservoir
Reservoir Cover
Float Switch Assembly
Fig. 3