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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III. Controls and Adjustments
A. Control Board
• A Hoshizaki exclusive control board is employed in Hoshizaki Modular Flakers.
• All models are pre-tested and factory adjusted.
• For a control board check procedure, see "II.C. Control Board Check."
NOTICE
• The control board is fragile; handle very carefully.
• The control board contains integrated circuits, which are susceptible to failure
due to static discharge. It is especially important to touch the metal part of the
icemaker before handling or replacing the control board.
• Do not touch the electronic devices on the control board or the back of the control
board.
• Do not change wiring and connections. Do not misconnect terminals.
• Do not short out power supply to test for voltage.
• Always replace the whole control board assembly if it goes bad.