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

24
6) Reconnect the 12 pin connector to the control box or re-connect wires with new bell
connectors.
7) Remove the control box cover, then plug the appliance into the electrical outlet
(F-300BAJ) or turn on the power supply (F-500BAJ). Next, conrm the control switch is
in the "ICE" position, then move the power switch to the "ON" position.
8) Wait for the "GM" LED to turn on. There is a delay of at least 5 seconds before the "GM"
LED turns on after power-up. Once the "GM" LED turns on, press the "SERVICE" button
on CB to bypass the ice purge timer. WARNING! Risk of electric shock. Care should
be taken not to touch live terminals. "COMP" LED turns on.
9) Press the actuator paddle located in the top of the bin to the right (actuator paddle
engaged). See Fig. 4. The 90-sec. Comp shutdown timer starts. Once 90-sec. Comp
shutdown timer terminates, Comp and FM de-energize and 60-sec. GM shutdown timer
starts. Once 60-sec. GM shutdown timer terminates, GM de-energizes.
Fig. 4
Actuator Paddle
Control Box
Control Switch
Powerl Switch
Proximity Switch
Diagnosis: If BC proximity switch is found open and the appliance continues to run,
replace CB.
10) Replace the control box cover and front panel in their correct positions.
11) Close the ice storage bin door.
Legend: BC–bin control; CB–control board; Comp–compressor; FM–fan motor; GM–gear
motor
Control Board
Model Shown: F-300BAJ