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
25
E. Bin Control Check
To check BC, follow the steps below.
NOTICE
When the ambient temperature is below 45°F (7°C), BC switch opens and
shuts down the appliance even if the ice storage bin is empty. When BC is
set in the prohibited range, the appliance operates continuously even if the ice
storage bin is lled with ice. Setting in the prohibited range may result in severe
damage to the appliance.
BC is factory set, and generally no adjustment is required. However, adjustment may be
needed in some conditions, particularly at higher altitude locations.
Note: • When BC switch is open, CB red "POWER OK" LED is off.
• CB yellow "BC OPEN" LED is on if CB red K4 connector does not have the
jumper in place.
1) Turn off the power supply.
2) Remove the front panel, then move the control switch to the "OFF" position.
3) Clear any ice away from BC bulb.
4) Remove the control box cover, then disconnect BC wires from BC switch.
5) Hold your hand around BC bulb to warm it up.
6) Check for continuity across BC switch. If closed, continue to step 6. If open, adjust or
replace BC.
7) With the multimeter test leads still in place, hold ice on BC bulb to lower the temperature
Within 10 sec., BC switch should open. If it remains closed, adjust or replace BC.
Legend: BC–bin control; CB–control board