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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F. Float Switch Check and Cleaning
1. Float Switch Check
1) Remove the front panel, then move the power switch to the "OFF" position.
2) Move the control switch to the "DRAIN" position.
3) Move the power switch to the "ON" position.
4) Allow the water to drain from the evaporator, then move the power switch to the "OFF"
position and the control switch to the "ICE" position.
5) Unplug the appliance from the electrical outlet.
6) Remove the control box cover.
7) Disconnect FS connector from CB K8 connector and check FS continuity. Both the UFS
and LFS should be open. Check continuity between CB K8 #5 (BK) (common) and CB
K8 #6(R) (UFS). Next, check continuity between CB K8 #5 (BK) (common) and CB K8
#7 (BU) (LFS). If both are open, continue to step 8. If either are closed, follow the steps
in "II.F.2. Float Switch Cleaning." After cleaning FS, check UFS and LFS again. Replace
if necessary.
8) Reconnect FS connector to CB K8 connector.
9) Plug the appliance into the electrical outlet, then move the power switch to the "ON"
position and let the water reservoir ll.
10) Once the reservoir is full and GM starts, move the power switch to the "OFF" position.
11) Unplug the appliance from the electrical outlet.
12) Disconnect FS connector from CB K8 connector and check FS continuity. Both the UFS
and LFS should be closed. Check continuity between CB K8 #5 (BK) (common) and
CB K8 #6 (R) (UFS). Next, check continuity between CB K8 #5 (BK) (common) and CB
K8#7 (BU) (LFS). If either are open, follow the steps in "II.F.2. Float Switch Cleaning."
After cleaning FS, check UFS and LFS again. Replace if necessary.
Red (R)
(upper oat switch)
Black (BK)
(common)
Dark Blue (DBU)
(lower oat switch)
Upper Float (blue)
Magnet (towards top)
Magnet (towards top)
Lower Float (white)
Plastic Retainer Clip
Spring Retainer Clip
Fig. 4