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 Relays
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
18
F. Diagnostic Tables
1. No Ice Production
No Ice Production - Possible Cause
Startup/Fill Cycle
1. Power Supply a) Unplugged, off, blown fuse, or tripped breaker.
b) Not within specications.
2. Optional Drain Pump HS-5061 a) Drain pump connection unplugged or loose.
b) Drain pump safety oat switch open.
3. Control Switch a) "OFF" position.
b) Bad contacts.
4. Bin Control Thermostat Assembly
(with integrated heater)
a) Open with bin lled with ice.
b) Out of position.
c) Out of adjustment. See "II.C. Bin Control Check."
d) Bad contacts.
e) Bad thermostat heater.
5. Water Supply a) Water supply off or improper water pressure.
b) External water lters clogged.
6. Water Control Relay a) Energized and not allowing water valve to energize.
See"II.D.1.Float Switch Check."
b) Defective.
7. Inlet Water Valve a) Screen or orice clogged.
b) Defective.
8. Float Switch
See "II.D. Float Switch Check
and Cleaning."
a) Float does not move freely.
b) Defective.
Freeze Cycle
1. Water Control Relay a) Defective.
2. Time Delay Relay a) Defective.
3. Gear Motor a) Gear motor external protector (2.4~3.0A) tripped.
b) Gear motor internal protector open or windings open.
c) Bad gear motor capacitor.
d) Locked bearings.
e) Spline coupling or gear broken and auger not turning.
4. Fan Motor a) Fan blade does not move freely.
b) Defective.
5. Compressor Relay a) Defective.
6. Compressor a) PTC relay defective
b) Inefficient.
c) Defective.
7. Evaporator a) Dirty.
b) Damaged or defective.
8. Condenser a) Dirty.
9. Refrigerant a) Low charge or overcharged.
b) Refrigerant lines or components restricted.
10. Water System a) Water leaks.