Service Manual
ManualsBrandsHoshizaki ManualsCommercial Countertop Ice Makers and DispensersDCM-300BAH-OS 26" Opti-Serve Series Sanitary Cubelet Ice Machine and Dispenser with 321 lbs. Daily Ice Production, Built-In 40 lbs. Ice Storage, CleanCycle12, H-GUARD Plus, and Corrosion Resistant Stainless Steel Exterior: Stainless Steel
Table Of Contents
- Important Safety Information
- I. Specifications
- II. General Information
- III. Technical Information
- IV. Service Diagnosis
- V. Removal and Replacement of Components
- A. Service for Refrigerant Lines
- B. Important Notes for Component Replacement
- 1. Upper Bearing Wear Check
- 2. Removal and Replacement of Extruding Head
- 3. Removal and Replacement of Auger
- 4. Removal and Replacement of Evaporator
- 5. Removal and Replacement of Mechanical Seal and Lower Housing
- 6. Removal and Replacement of Gear Motor
- 7. Dispense Auger and Agitator
- 8. Dispense or Agitating Motor
- VI. Cleaning and Maintenance
- VII. Disposal
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F. Diagnostic Charts
Before consulting the diagnostic charts, check for correct installation, proper voltage per
unit nameplate, and adequate water pressure (10 to 113 PSIG). Check CB using the steps
in "IV.C. Control Board Check."
1. No Ice Production
Startup
1. Power Supply a) Off, blown fuse, or tripped breaker.
b) Not within specications.
2. Water Supply a) Water supply off or improper water pressure.
b) External water lters clogged.
3. Power Switch a) "OFF" position or defective.
4. Safety Switch a) Not engaged or defective.
5. Power Protect Relay a) Voltage not within specications.
b) Defective.
6. Control Transformer
(115VAC, 24VAC, and 10.5VAC)
a) Coil winding open or shorted.
7. 1A Fuse (24VAC Control Board) a) Blown.
8. .5A Fuse (10.5VAC Control
Board)
a) Blown.
9. Control Board
See "IV.C. Control Board Check"
a) Defective.
10. Control Switch a) In "OFF" or "DRAIN" position.
b) Defective.
11. Bin Control a) Tripped with bin lled with ice.
b) Proximity switch stuck open.
c) Actuator paddle does not move freely.
12. High-Pressure Switch a) Dirty condenser.
b) Ambient temperature too warm.
c) Fan motor not operating.
d) Refrigerant overcharged.
e) Bad contacts.
f) Refrigerant lines or components restricted.
Fill Cycle
1. Water Control Relay a) Energized(upperoatswitchstuckclosed).
b) Defective.
2. Inlet Water Valve a) Screen or orice clogged.
b) Coil winding open.
3. Float Switch
See "IV.E. Float Switch Check
and Cleaning"
a) Float does not move freely.
b) Defective.