Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water/Refrigeration Circuit Diagrams
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- A. Control Board Layout
- B. LED Lights and Audible Alarm Safeties
- C. Settings and Adjustments
- 1. Default Dip Switch Settings
- 2. Harvest Timer (S4 dip switch 1 & 2)
- 3. Pump-Out Timer/Harvest Time During Pump-Out (S4 dip switch 3 & 4)
- 4. Pump-Out Frequency Control (S4 dip switch 5)
- 5. Harvest Pump Time (Harvest Assist) (S4 dip switch 6)
- 6. Harvest Pump Time (Harvest Assist)/Freeze-Time Correction (S4 dip switch 7)
- 7. Factory Use (S4 dip switch 8)
- 8. Freeze Timer (S4 dip switch 9 & 10)
- 9. Float Switch Selector (S5 dip switch 1)
- 10. Refill Counter (S5 dip switch 2 and 3)
- 11. Minimum Harvest Time (S5 dip switch 4)
- 12. Anti-Slush (S5 dip switch 5)
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
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F. Float Switch Check and Cleaning
FS is used to conrm sufficient water in the water tank after the 1-min. llcycle and
after each harvest cycle. FS is also used to terminate the freeze cycle. No adjustment is
required.
1. Float Switch Check
To check FS, follow the steps below.
1) Turn off the power supply.
2) Remove the front panel.
3) Place the control switch in the "SERVICE" position. Then place the service switch in the
"DRAIN" position.
4) Replace the front panel in its correct position, then turn on the power supply for 2min.
5) Turn off the power supply.
6) Remove the front panel, then move the control switch to the "OFF" position.
7) Remove the control box cover, then disconnect FS connector from CB black
K5connector.
8) Check for continuity across FS leads. With the water tank empty, FS should be open.
Ifopen, continue to step 9. If closed, follow the steps in "II.F.2. Float Switch Cleaning."
After cleaning FS, check it again. Replace if necessary.
9) Reconnect FS connector to CB black K5 connector, then replace the control box cover
in its correct position.
10) Move the control switch to "ICE" position. Replace the front panel.
11) Turn on the power supply.
12) As water lls the water tank, FS contacts should close. After 1 min., the 1-min. ll cycle
should end and the initial harvest cycle should begin. If harvest cycle doesn't start after
1 min. check continuity of FS with water tank full. If open, replace FS. If closed and
harvest cycle has not started, replace CB.
13) Once the harvest cycle starts, turn off the power supply.
14) Remove the front panel, then move the control switch to the "OFF" position.
15) Remove the control box cover, then disconnect FS connector from CB black
K5 connector.
16) Check for continuity across FS leads. With the water tank full, FS should be closed.
If FS is closed and the appliance will not switch from the 1-min. ll cycle to the initial
harvest cycle, replace CB.
17) If open, conrm that the water tank is full. If the water tank is not full, check the water
supply, water lters, and inlet water valve. If the water tank is full, follow the steps in
"II.F.2. Float Switch Cleaning." After cleaning FS, check it again. Replace if necessary.
18) Reconnect FS connector to CB black K5 connector, then replace the control box cover
in its correct position.