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
- 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)
- 6. Agitation and Ice Purge Timer (S1 dip switch 8)
- 7. Mechanical Shutdown Delay (S1 dip switch 9)
- 8. Factory Use (S1 Dip Switch 10)
- 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-300BAJ
- 2. F-500BAJ
- B. Wiring Diagrams
- 1. F-300BAJ
- 2. F-500BAJ
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C. Power Switch and Control Switch
The power switch and the control switch are used to control the icemaker. They are
located on the control box.
1. Power Switch
The power switch has 2 positions, "OFF" and "ON." When the power switch is in the
"OFF" position, no power is supplied to the components. When in the "ON" position,
power is supplied to the control transformer and control board. The control board then
supplies 5VDC to the control switch for unit operation.
2. Control Switch
The control switch has 2 positions, "ICE" and "DRAIN."
When the control switch is in the "ICE" position (open), icemaking begins.
When the control switch is in the "DRAIN" position (closed), the drain valve energizes.
a) ICE
When the control switch is in the "ICE" position, the control board reads an open
circuit through the control switch contacts and starts the icemaking process.
b) DRAIN
When the control switch is in the "DRAIN" position, the control board reads a closed
circuit through the control switch and the drain valve energizes.IV. Refrigeration Circuit
and Component Service Information.