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
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
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G. Diagnosis Table
First see "III.F. Error Codes." If there are no recorded errors, refer to the table below.
No Ice Production - Possible Cause
1. Power Supply a) Off, blown fuse, or tripped breaker.
b) Not within specications.
2. Fuse (Control Box) a) Blown.
3. Control Switch a) In "OFF" or "WASH" position.
b) Bad contacts.
4. High-Pressure Switch a) Dirty condenser or air lter.
b) Fan motor not operating.
c) Refrigerant overcharged.
d) Bad contacts.
e) Refrigerant lines or components restricted.
5. Control Transformer
(115VAC/10.5VAC)
a) Coil winding open or shorted.
6. Control Board
See "II.C. Control Board Check"
a) Error. See "III.F. Error Codes."
b) Defective.
7. Bin Control
See "II.D. Bin Control Check and
Cleaning"
a) Tripped with bin lled with ice.
b) Actuator does not move freely.
c) Defective.
8. Water Supply a) Water supply off or improper water pressure.
b) External water lters restricted.
9. Inlet Water Valve a) Screen or orice restricted.
b) Coil winding open.
10. Compressor a) Compressor relay/magnetic contactor contacts bad or coil winding
open.
b) Start capacitor or run capacitor defective (single phase).
c) Internal protector open.
d) Start relay contacts bad or coil winding open (single phase).
e) Defective.
11. Hot Gas Valve a) Defective.
12. Evaporator (Cube Control)
Thermistor
See "II.E. Evaporator Thermistor
Check"
a) Loose, disconnected, or defective.
13. Pump Motor a) Mechanical seal worn out.
b) Defective.
c) Defective capacitor.
14. Thermostatic Expansion Valve a) Bulb loose.
b) Defective.
15. Fan Motor a) Defective.
b) Defective capacitor.
16. Water System a) Water leaks.