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
- 1. Control Board Layout Shown:
- 2. LED Lights and Audible Alarm Safeties
- 3. Ice Purge Cycle Bypass
- 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)
- 6a. Mechanical Shutdown Delay (S1 dip switch 8) Auxiliary Code E-0:
- 6b. Agitation and Ice Purge Timer (S1 dip switch 8) Auxiliary Code F-0 and Later:
- 7. Mechanical Shutdown Delay (S1 dip switch 9) Auxiliary Code F-0 and Later
- 8a. Factory Use (S1 Dip Switch 9 & 10) Auxiliary Code E-0
- 8b. Factory Use (S1 Dip Switch 10) Auxiliary Code F-0 and Later
- 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-330BAJ
- 2. F-330BAJ-C
- B. Wiring Diagram
26
F. Diagnostic Tables
Before consulting the diagnostic charts, check for correct installation, proper voltage per
appliance nameplate, and adequate water supply. Check control board using the steps in
"II.C. Control Board Check."
1. No Ice Production
No Ice Production - Possible Cause
Startup
1. Power Supply a) Unplugged, off, blown fuse, or tripped breaker.
b) Not within specications.
2. Water Supply a) Water supply off or improper water pressure (10 to 113 PSIG).
b) External water lters clogged.
3. Power Switch a) "OFF" position.
4. Control Transformer
(115V/24V)
a) Coil winding open or shorted.
5. Fuse (3A) a) Blown.
6. Bin Control
See "II.D. Bin Control Check."
a) Open.
b) Defective.
7. Control Switch a) In "DRAIN" position.
b) Defective.
8. Compressor Control Relay a) Defective.
9. Evaporator Heater
(-C model)
a) Defective.
Startup/Fill Cycle (reservoir empty)
1. Control Board a) Defective.
2. Inlet Water Valve a) Screen or orice clogged.
b) Defective.
Startup/Ice Purge Cycle (reservoir full)
1. Float Switch
See "II.E. Float Switch Check
and Cleaning."
a) Float does not move freely.
b) Defective.
2. High-Pressure Switch a) Dirty air lter or condenser.
b) Condenser fan motor defective.
c) Refrigerant overcharge.
d) Refrigerant lines or components plugged.
3. Control Board
See "II.C. Control Board Check."
a) Defective.
4. Gear Motor a) External or internal protector open.
b) Gear motor winding open.
c) Mechanical failure.